2009 in paleontology
Encyclopedia

Anomalocaridids

Name Novelty Status Authors Age Unit Location Notes Images

Schinderhannes
Schinderhannes bartelsi
Schinderhannes bartelsi is an anomalocarid known from one specimen from the lower Devonian Hunsrück Slates. Its discovery was astonishing because previously, anomalocaridids had only been known from exceptionally preserved fossil beds from the Cambrian, 100 million years earlier.Anomalocaridids...


gen et sp nov

Valid

Kühl, Briggs, & Rust

Lower Devonian

Hunsrück Slate
Hunsrück Slate
The Hunsrück Slate is a Lower Devonian lithostratigraphic unit, a type of rock strata, in the German regions of the Hunsrück and Taunus. It is a lagerstätte famous for exceptional preservation of a highly diverse fossil fauna assemblage.-Geology:...


 Germany


Arachnids

Name Novelty Status Authors Age Unit Location Notes Images

Palaeoperenethis
Palaeoperenethis
Palaeoperenethis is an extinct monotypic genus of Nursery web spider family Pisauridae, and at present, it contains the single species Palaeoperenethis thaleri...


gen et sp nov

Valid

Selden & Penney

Ypresian

Horsefly Lagerstätte, British Columbia

 Canada

Insects

Name Novelty Status Authors Age Unit Location Notes Images

Agulla mineralensis
Agulla mineralensis
Agulla mineralensis is an extinct species of snakefly in the raphidiid genus Agulla. The species is solely known from the Middle Miocene, late Bartovian stage, Pacific Union Site in the Stewart Valley Group, Mineral County, Nevada....


sp nov

Valid

Engel
Michael S. Engel
Michael S. Engel is an American paleontologist and entomologist. He has undertaken field work in Central Asia, Asia Minor, and the Western Hemisphere, and published more than 300 papers in scientific journals. He was trained at the University of Kansas where in 1993 he received a B.S. in Cellular...


Late Barstovian
Barstovian
The Barstovian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology , typically set from 16,300,000 to 13,600,000 years BP, a period of . It is usually considered to overlap the Langhian and Serravallian...


Stewart Valley Group

 United States

only described Neogene snakefly fossil

Allorapisma
Allorapisma
Allorapisma is an extinct genus of moth lacewing containing the single species Allorapisma chuorum, which existed in what is now Washington during the Eocene period....


gen et sp nov

Valid

Makarkin & Archibald

Ypresian

Tom Thumb Tuff, Klondike Mountain Formation
Klondike Mountain Formation
The Klondike Mountain Formation is an early Eocene geologic formation that records the sedimentation in the southern most of a string of highland subtropical/Temperate lakes in Washington state and British Columbia. The formation is best known for exceptionally well preserved plant and insect fossils...


 United States

Apis (Cascapis) nearctica
Apis nearctica
Apis nearctica is an extinct species of honey bee which existed in what is now the United States, during the middle Miocene period. It was described by Michael S. Engel, Ismael A. Hinojosa-Díaz, and Alexandr P. Rasnitsyn in 2009, and is the first fossil honey bee described from the New World....


sp nov

Valid

Engel
Michael S. Engel
Michael S. Engel is an American paleontologist and entomologist. He has undertaken field work in Central Asia, Asia Minor, and the Western Hemisphere, and published more than 300 papers in scientific journals. He was trained at the University of Kansas where in 1993 he received a B.S. in Cellular...

, Hinojosa-Diaz, & Rasnitsyn

Middle Miocene

 United States

The first fossil honey bee
Honey bee
Honey bees are a subset of bees in the genus Apis, primarily distinguished by the production and storage of honey and the construction of perennial, colonial nests out of wax. Honey bees are the only extant members of the tribe Apini, all in the genus Apis...

 from the New World.
Aspidopleura
Aspidopleura
Aspidopleura is an extinct monotypic genus of parasitic wasp in the Eupelmidae subfamily Neanastatinae and at present, it contains the single species Aspidopleura baltica...


gen et sp nov

Valid

Gibson

Eocene

Baltic amber


Brevivulva
Brevivulva
Brevivulva is an extinct genus of parasitic wasp in the Eupelmidae subfamily Neanastatinae and contains the single species Brevivulva electroma...


gen et sp nov

Valid

Gibson

Eocene

Baltic amber


Cimbrophlebia brooksi
Cimbrophlebia
Cimbrophlebia is an extinct genus of Mecoptera which existed during the Eocene period. It contains the species Cimbrophlebia brooksi, Cimbrophlebia flabelliformis, Cimbrophlebia leahyi, and Cimbrophlebia westae....


sp nov

Valid

Archibald

Ypresian

Tom Thumb Tuff, Klondike Mountain Formation

 United States

Cimbrophlebia flabelliformis
Cimbrophlebia
Cimbrophlebia is an extinct genus of Mecoptera which existed during the Eocene period. It contains the species Cimbrophlebia brooksi, Cimbrophlebia flabelliformis, Cimbrophlebia leahyi, and Cimbrophlebia westae....


sp nov

Valid

Archibald

Ypresian

Kamloops Group, McAbee, British Columbia

 Canada

Cimbrophlebia leahyi
Cimbrophlebia
Cimbrophlebia is an extinct genus of Mecoptera which existed during the Eocene period. It contains the species Cimbrophlebia brooksi, Cimbrophlebia flabelliformis, Cimbrophlebia leahyi, and Cimbrophlebia westae....


sp nov

Valid

Archibald

Ypresian

Kamloops Group, McAbee, British Columbia

 Canada

Cimbrophlebia westae
Cimbrophlebia
Cimbrophlebia is an extinct genus of Mecoptera which existed during the Eocene period. It contains the species Cimbrophlebia brooksi, Cimbrophlebia flabelliformis, Cimbrophlebia leahyi, and Cimbrophlebia westae....


sp nov

Valid

Archibald

Ypresian

Tom Thumb Tuff, Klondike Mountain Formation

 United States

Denaeaspis
Denaeaspis
Denaeaspis is an extinct genus of tortoise beetle in the family Chrysomelidae and containing a single species Denaeaspis chelonopsis...


gen et sp nov

valid

Chaboo & Engel
Michael S. Engel
Michael S. Engel is an American paleontologist and entomologist. He has undertaken field work in Central Asia, Asia Minor, and the Western Hemisphere, and published more than 300 papers in scientific journals. He was trained at the University of Kansas where in 1993 he received a B.S. in Cellular...


Lutetian
Lutetian
The Lutetian is, in the geologic timescale, a stage or age in the Eocene. It spans the time between and . The Lutetian is preceded by the Ypresian and is followed by the Bartonian. Together with the Bartonian it is sometimes referred to as the Middle Eocene subepoch...


Parachute Member, Green River Formation
Green River Formation
The Green River Formation is an Eocene geologic formation that records the sedimentation in a group of intermountain lakes. The sediments are deposited in very fine layers, a dark layer during the growing season and a light-hue inorganic layer in winter. Each pair of layers is called a varve and...


 United States

One of the oldest tortoise beetles

Eosacantha
Eosacantha
Eosacantha is an extinct genus of tortoise beetle in the family Chrysomelidae and containing a single species Eosacantha delocranioides...


gen et sp nov

valid

Chaboo & Engel
Michael S. Engel
Michael S. Engel is an American paleontologist and entomologist. He has undertaken field work in Central Asia, Asia Minor, and the Western Hemisphere, and published more than 300 papers in scientific journals. He was trained at the University of Kansas where in 1993 he received a B.S. in Cellular...


Lutetian
Lutetian
The Lutetian is, in the geologic timescale, a stage or age in the Eocene. It spans the time between and . The Lutetian is preceded by the Ypresian and is followed by the Bartonian. Together with the Bartonian it is sometimes referred to as the Middle Eocene subepoch...


Parachute Member, Green River Formation
Green River Formation
The Green River Formation is an Eocene geologic formation that records the sedimentation in a group of intermountain lakes. The sediments are deposited in very fine layers, a dark layer during the growing season and a light-hue inorganic layer in winter. Each pair of layers is called a varve and...


 United States

One of the oldest tortoise beetles

Leptofoenus pittfieldae
Leptofoenus pittfieldae
Leptofoenus pittfieldae is an extinct species of wasp in the family Pteromalidae known from early Miocene Burdigalian stage Dominican amber deposits on the island of Hispaniola...


sp nov

Valid

Engel
Michael S. Engel
Michael S. Engel is an American paleontologist and entomologist. He has undertaken field work in Central Asia, Asia Minor, and the Western Hemisphere, and published more than 300 papers in scientific journals. He was trained at the University of Kansas where in 1993 he received a B.S. in Cellular...


Burdigalian

Dominican amber

 Dominican Republic


Metapelma archetypon
Metapelma archetypon
Metapelma archetypon is an extinct species of parasitic wasp in the Eupelmidae genus Metapelma. The species is solely known from the Early Eocene Baltic amber deposits in the Baltic Sea region of Europe. Of the thirty seven described species in the genus Metapelma, M...


sp nov

Valid

Gibson

Eocene

Baltic amber


Neanaperiallus
Neanaperiallus
Neanaperiallus is an extinct monotypic genus of parasitic wasp in the Eupelmidae subfamily Neanastatinae containing only a single species, Neanaperiallus masneri...


gen et sp nov

Valid

Gibson

Eocene

Baltic amber


Nesagapostemon
Nesagapostemon
Nesagapostemon is an extinct monotypic genus of sweat bee in the Halictidae subfamily Halictinae. At present, it contains the single species Nesagapostemon moronei....


gen et sp nov

Valid

Engel
Michael S. Engel
Michael S. Engel is an American paleontologist and entomologist. He has undertaken field work in Central Asia, Asia Minor, and the Western Hemisphere, and published more than 300 papers in scientific journals. He was trained at the University of Kansas where in 1993 he received a B.S. in Cellular...


Burdigalian

Dominican amber

 Dominican Republic


Nymphes georgei
Nymphes georgei
Nymphes georgei is an extinct species of lacewing which existed in Washington during the Eocene period....


sp nov

Valid

Archibald, Makarkin, & Ansorge

Ypresian

Tom Thumb Tuff, Klondike Mountain Formation

 United States


Oligochlora semirugosa
Oligochlora
Oligochlora is an extinct genus of sweat bee in the Halictidae subfamily Halictinae. The genus currently contains six species, all of which are known from the early Miocene Burdigalian stage Dominican amber deposits on the island of Hispaniola....


sp nov

Valid

Engel
Michael S. Engel
Michael S. Engel is an American paleontologist and entomologist. He has undertaken field work in Central Asia, Asia Minor, and the Western Hemisphere, and published more than 300 papers in scientific journals. He was trained at the University of Kansas where in 1993 he received a B.S. in Cellular...


Burdigalian

Dominican amber

 Dominican Republic


Pronymphes hoffeinsorum
Pronymphes
Pronymphes is an extinct genus of lacewing which existed during the Eocene period. It contains two species, Pronymphes mengeana and P. hoffeinsorum....


Valid

Archibald, Makarkin, Ansorge

Priabonian

Yantarny [=Palmnicken], Kaliningradskaya Oblast’

 Russia

Termitaradus mitnicki
Termitaradus mitnicki
Termitaradus mitnicki is an extinct species of true bug in the family Termitaphididae known only from early Miocene Burdigalian stage Dominican amber deposits on the island of Hispaniola....


sp nov

Valid

Engel
Michael S. Engel
Michael S. Engel is an American paleontologist and entomologist. He has undertaken field work in Central Asia, Asia Minor, and the Western Hemisphere, and published more than 300 papers in scientific journals. He was trained at the University of Kansas where in 1993 he received a B.S. in Cellular...


Burdigalian

Dominican amber

 Dominican Republic


Cephalopods

Three new species of extinct Octopoda
Octopus
The octopus is a cephalopod mollusc of the order Octopoda. Octopuses have two eyes and four pairs of arms, and like other cephalopods they are bilaterally symmetric. An octopus has a hard beak, with its mouth at the center point of the arms...

 discovered in 2009. The species - Keuppia hyperbolaris, Keuppia levante, and Styletoctopus annae - lived about 95 million years ago, and bear a strong resemblance to modern octopuses, suggesting that the Octopoda order has remained relatively unchanged for tens of millions of years. The fossils included evidence of arm
Cephalopod arm
A cephalopod arm is distinct from a tentacle, though the terms are often used interchangeably.Generally, cephalopod arms have suckers along most of their length, as opposed to tentacles, which have suckers only near their ends. Octopuses have eight arms and no tentacles, while squid and cuttlefish...

s, muscles, rows of suckers, ink
Cephalopod ink
Cephalopod ink is a dark pigment released into water by most species of cephalopod, usually as an escape mechanism. All cephalopods, with the exception of the Nautilidae and the species of octopus belonging to the suborder Cirrina, are able to release ink....

, and internal gills. The discovery was made by a team led by Dirk Fuchs of the Freie University, which is located at Berlin
Berlin
Berlin is the capital city of Germany and is one of the 16 states of Germany. With a population of 3.45 million people, Berlin is Germany's largest city. It is the second most populous city proper and the seventh most populous urban area in the European Union...

, Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

. The fossils were found at Hakel and Hadjoula, Lebanon
Lebanon
Lebanon , officially the Republic of LebanonRepublic of Lebanon is the most common term used by Lebanese government agencies. The term Lebanese Republic, a literal translation of the official Arabic and French names that is not used in today's world. Arabic is the most common language spoken among...

.
Name Novelty Status Authors Age Unit Location Notes Images

Keuppia
Keuppia
Keuppia is an extinct genus of octopus. It consists of two species, Keuppia hyperbolaris and Keuppia levante, both of which lived approximately 95 million years ago. Both species were found in fossilized form, which is very uncommon for extinct octopuses, as the soft tissue of dead octopuses almost...


Gen et sp nov

Valid

Fuchs, Bracchi, & Weis

Upper Cenomanian

 Lebanon


Styletoctopus
Styletoctopus
Styletoctopus is an extinct genus of octopus. The genus consists of the single species Styletoctopus annae, which lived approximately 95 million years ago. Very few octopus species appear in the fossil record, as octopuses consist of soft tissue that usually decomposes before it has time to...


gen et sp nov

Valid

Fuchs, Bracchi, & Weis

Upper Cenomanian

 Lebanon

Newly named amphibians

Name Status Authors Age Unit Location Notes Images

Cratia
Cratia
Cratia is an extinct frog which existed in Brazil during the lower Cretaceous period. It was named by Ana M. Báez, Geraldo J.B. Moura and Raúl O. Gómez in 2009, and the type species is Cratia gracilis....


Valid
  • Báez
  • Moura
  • Gómez

Lower Cretaceous

Crato Formation
Crato Formation
The Crato Formation is a geologic formation of Early Cretaceous age in northeastern Brazil's Araripe Basin. It is an important Lagerstätte for palaeontologists. The strata were laid down mostly during the early Albian age, about 108 million years ago, in a shallow inland sea...


 Brazil

Possible stem neobatrachia
Neobatrachia
Neobatrachia are a suborder of the Anura, the order of frogs and toads. This suborder is the most advanced and apomorphic of the three anuran orders alive today; hence its name, which literally means "new frogs"...

n

Eurycephalella
Eurycephalella
Eurycephalella is an extinct genus of frog which existed in what is now Brazil during the lower Cretaceous period. It was named by Ana M. Báez, Geraldo J.B. Moura and Raúl O. Gómez in 2009, and the type species is Eurycephalella alcinae.-Discovery:...


Valid
  • Báez
  • Moura
  • Gómez

Lower Cretaceous

Crato Formation
Crato Formation
The Crato Formation is a geologic formation of Early Cretaceous age in northeastern Brazil's Araripe Basin. It is an important Lagerstätte for palaeontologists. The strata were laid down mostly during the early Albian age, about 108 million years ago, in a shallow inland sea...


 Brazil

A hyloid

Nannaroter
Nannaroter
Nannaroter is an extinct genus of tuditanomorph microsaur within the family Ostodolepidae. It is known from only the holotype specimen, which was found in the Dolese Brothers Limestone Quarry in Oklahoma. The holotype, a well preserved skull, was found in Early Permian-aged fissure fill deposits in...


Valid
  • Anderson
  • Scott
  • Reisz
    Robert R. Reisz
    Robert Rafael Reisz is a Canadian paleontologist and specialist in the study of early amniote and tetrapod evolution.Robert Reisz was born August 27, 1947, in Oradea, Romania. He received his B.Sc. , M.Sc. and Ph.D. from McGill University as Robert L. Carroll’s first doctoral graduate...


Early Permian

 United States

The smallest known ostodolepid
Ostodolepidae
Ostodolepidae is an extinct family of tuditanomorph microsaurs. They are unique among microsaurs in that they were large, reaching lengths of up to , terrestrial, and presumably fossorial. Ostodolepid remains have been found from Early Permian beds in Texas and Oklahoma.Ostodolepids have elongated...

 microsaur
Microsauria
Microsauria is an extinct order of lepospondyl amphibians from the late Carboniferous and early Permian periods. It is the most diverse and species-rich group of lepospondyls. Recently, Microsauria has been considered paraphyletic, as several other non-microsaur lepospondyl groups such as...


Nesovtriton
Nesovtriton
Nesovtriton is an extinct genus of cryptobranchoid salamander known from the Late Cretaceous of Byssekty Formation, in Uzbekistan. It was first named by Pavel P. Skutschas in 2009 and the type species is Nesovtriton mynbulakensis....


Valid
  • Skutschas

Turonian

Bissekty Formation
Bissekty Formation
The Bissekty Formation is situated in the Kyzyl Kum desert of Uzbekistan, and dates from the late Cretaceous Period. Laid down in the early the Turonian to Coniacian stages, it is dated to about 90-85 ma .The Bissekty Formation is characterised by a mix of marine, brackish, freshwater, and...


 Uzbekistan

A cryptobranchoid
Cryptobranchoidea
Cryptobranchoidea is a suborder of salamanders found in the eastern United States, China, and Japan. They are known as primitive salamanders, in contrast to Salamandroidea, or advanced salamander....

 salamander
Salamander
Salamander is a common name of approximately 500 species of amphibians. They are typically characterized by a superficially lizard-like appearance, with their slender bodies, short noses, and long tails. All known fossils and extinct species fall under the order Caudata, while sometimes the extant...


Regalerpeton
Regalerpeton
Regalerpeton is an extinct genus of cryptobranchoid salamander known from the Early Cretaceous of Huajiying Formation, China. It was first named by Guilin Zhang, Yuan Wang, Marc E.H. Jones and Susan E. Evans in 2009 and the type species is Regalerpeton weichangensis....


Valid
  • Zhang
  • Wang
  • Jones
  • Evans
    Susan E. Evans
    Susan E. Evans is British paleontologist and herpetologist. She is the author or co-author of over 100 peer-reviewed papers and book chapters....


Early Cretaceous

Huajiying Formation
Huajiying Formation
The Huajiying Formation is a geological formation in Hebei, People's Republic of China. Known for its fossils including primitive birds, the age of the ormation is uncertain. It may represent an early portion of the Jehol Biota, dating to somewhere in the early Cretaceous or late Jurassic periods...


 Mainland China

A cryptobranchoid salamander

Spinarerpeton
Spinarerpeton
Spinarerpeton is an extinct genus of discosauriscid seymouriamorph known from the early Permian of Boskovice Furrow, in the Czech Republic. It was first named by Jozef Klembara in 2009 and the type species is Spinarerpeton brevicephalum. A phylogenetic analysis places Spinarerpeton as the sister...


Valid
  • Klembara

Early Permian

Boskovice Furrow
Boskovice
Boskovice is a town in the Czech Republic.-Location:The town is situated in the Drahanská Highlands, about 30–40 km to the north of Brno, the most important city of Moravia.-History:...


 Czech Republic

A discosauriscid
Discosauriscidae
Discosauriscidae is a family of reptiliomorphs of the early Permian group Seymouriamorpha....

 seymouriamorph
Seymouriamorpha
Seymouriamorpha were a small but widespread group of reptiliomorphs. Many seymouriamorphs were terrestrial or semi-aquatic. However, aquatic larvae bearing external gills and grooves from the lateral line system has been found, making them unquestionably amphibians. The adults were terrestrial...


Newly named anapsids

Name Status Authors Discovery year Age Unit Location Notes Images

Angolachelys
Angolachelys
Angolachelys is an extinct genus of African eucryptodiran turtle which existed in Angola during the Turonian stage of the Late Cretaceous. The type species is Angolachelys mbaxi- Phylogeny :Cladogram after Mateus et al. ....


Valid
  • Mateus
  • Jacobs
  • et al.

Turonian (Late Cretaceous)

 Angola

Aurorachelys
Aurorachelys
Aurorachelys gaffneyi is an extinct species of turtle which existed in Canada during the late Cretaceous period, and the only species in the genus Aurorachelys....


Valid
  • Vandermark
  • Tarduno
  • et al.

Late Cretaceous

Strand Fiord Formation
Strand Fiord Formation
The Strand Fiord Formation is a Late Cretaceous volcanic component, located on northwestern and west-central Axel Heiberg Island, Nunavut, Canada. The formation contains flood basalts which are found on western Axel Heiberg Island at Dragon Cliffs tall....


 Canada

Australothyris
Australothyris
Australothyris is an extinct genus of basal parareptile known from the middle Permian of Tapinocephalus Assemblage Zone, South Africa. It was first named by Sean P. Modesto, Diane M. Scott, and Robert R. Reisz in 2009, and the type species is Australothyris smithi.- Phylogeny :Cladogram after...


Valid
  • Modesto
  • Scott
  • Reisz
    Robert R. Reisz
    Robert Rafael Reisz is a Canadian paleontologist and specialist in the study of early amniote and tetrapod evolution.Robert Reisz was born August 27, 1947, in Oradea, Romania. He received his B.Sc. , M.Sc. and Ph.D. from McGill University as Robert L. Carroll’s first doctoral graduate...


Middle Permian

Tapinocephalus Assemblage Zone
Tapinocephalus Assemblage Zone
The Tapinocephalus Assemblage Zone is a geological stratum and is the thickest faunal zone of the Beaufort Group, in which has been found a rich variety of early therapsids. The name refers to Tapinocephalus, a genus of large herbivorous dinocephalian synapsids that lived during the Middle Permian...


 South Africa

A basal parareptile
Parareptilia
Parareptilia is a subclass or clade of reptiles which is variously defined as an extinct group of primitive anapsids, or a more cladistically correct alternative to Anapsida...


Basilochelys
Basilochelys
Basilochelys is an extinct genus of land turtle which existed from the late Jurassic to the early Cretaceous period. Containing the sole species Basilochelys macrobios, its fossils have been found in the Phu Kradung Formation of Northeast Thailand. It is considered to be the most basal member of...


Valid
  • Tong
  • Claude
  • et al.

Late Jurassic/Lower Cretaceous

Phu Kradung Formation
Phu Kradung Formation
The Phu Kradung Formation is a Mesozoic geologic formation. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.-See also:* List of dinosaur-bearing rock formations...


 Thailand

Cedrobaena
Cedrobaena
Cedrobaena is an extinct genus of turtle which existed in the Tiffanian Cedar Point Quarry, Wyoming and in the latest Maastrichtian Hell Creek Formation, United States. It was first named by Tyler R. Lyson and Walter G. Joyce in 2009 and the type species is Cedrobaena putorius....


Valid
  • Lyson
  • Joyce

Paleocene

Fort Union Formation
Fort Union Formation
The Fort Union Formation is a geologic unit containing sandstones, shales, and coal beds in Wyoming, Montana, and parts of adjacent states. In the Powder River Basin, it contains important economic deposits of coal, uranium, and coalbed methane....


 United States

New genus for "Plesiobaena" putorius Gaffney, 1972

Derrisemys

Junior synonym
  • Hutchison

Early Paleocene

 United States

Junior synonym of Hutchemys.

Eileanchelys
Eileanchelys
Eileanchelys is an extinct genus of pond turtle from the Middle Jurassic period some 164 million years ago of Britain. It was once the earliest swimming turtle known to science, and was thought to be an evolutionary bridge between early land turtles and sea turtles...


Valid
  • Anquetin
  • Barrett
  • et al.

Middle Jurassic

Kilmaluag Formation

 Kingdom of Scotland

Hutchemys
Hutchemys
Hutchemys is an extinct genus of softshell turtles from the late Cretaceous to the late Paleocene of New Mexico, Montana, Wyoming and Utah, USA. It was first named by Walter G. Joyce, Ariel Revan, Tyler R. Lyson and Igor G. Danilov in 2009, and the type species is Hutchemys rememdium. H...


Valid
  • Joyce
  • Revan
  • Lyson
  • Danilov

Paleocene

Fort Union Formation
Fort Union Formation
The Fort Union Formation is a geologic unit containing sandstones, shales, and coal beds in Wyoming, Montana, and parts of adjacent states. In the Powder River Basin, it contains important economic deposits of coal, uranium, and coalbed methane....

 
Tullock Formation

 United States

A plastomenine softshell turtles
Trionychidae
Trionychidae is a taxonomic family which comprises a number of turtle genera commonly known as softshells. They are also sometimes called pancake turtles. Softshells consist of some of the world's largest fresh water turtles, though many can adapt to living in highly brackish areas. Members of this...


Kinkonychelys
Kinkonychelys
Kinkonychelys is an extinct genus of side-necked turtle which existed in Madagascar during the Late Cretaceous period. It contains the single species Kinkonychelys rogersi, named in honor of its discoverer, Raymond R. Rogers...


Valid
  • Gaffney
    Eugene S. Gaffney
    Eugene S. Gaffney is an American paleontologist and leading authority on the evolutionary history of turtles.-Biography:He graduated from Rutgers State University in 1965; and received his PhD in 1969 with a thesis on "The North American Baenoidea and the Cryptodire-Pleurodire Dichotomy" from...

  • Krause
    David W. Krause
    David W. Krause is a Canadian-born vertebrate paleontologist currently working as a Distinguished Service Professor at the Stony Brook University Department of Anatomical Sciences. His work primarily focuses on fossils from the Cretaceous period of Madagascar, and he often travels to the island to...

  • Zalmout

Late Cretaceous

Maevarano Formation
Maevarano Formation
The Maevarano Formation is an Upper Cretaceous sedimentary rock formation found in the Mahajanga Province of northwestern Madagascar. It is most likely Maastrichtian in age, and records a seasonal, semiarid environment with rivers that had greatly varying discharges...


 Madagascar

Palatobaena cohen
Palatobaena
Palatobaena is an extinct genus of baenid turtle. It was first named by Gaffney in 1972 and the type species is Palatobaena bairdi. It based on a fragmentary skull from the Fort Union Formation of the Bighorn Basin of Wyoming. The two other species are P. gaffneyi and P...


Valid
  • Lyson
  • Joyce

Maastrichtian

Hell Creek Formation
Hell Creek Formation
The Hell Creek Formation is an intensely-studied division of Upper Cretaceous to lower Paleocene rocks in North America, named for exposures studied along Hell Creek, near Jordan, Montana...


 United States

A baenid
Baenidae
Baenidae is an extinct family of cryptodiran turtles.-External links:* http://www.nhm.org/site/sites/default/files/dinosaur_institute/pdf/NHM_DI_proytecto_dino_Erika_Canola_Baenidae_Turtle_experience.pdf...


Peckemys
Peckemys
Peckemys is an extinct genus of turtle which existed in the Hell Creek Formation, United States during the late Cretaceous period . It was first named by Tyler R. Lyson and Walter G. Joyce in 2009 and the type species is Peckemys brinkman....


Valid
  • Lyson
  • Joyce

Late Cretaceous

Hell Creek Formation
Hell Creek Formation
The Hell Creek Formation is an intensely-studied division of Upper Cretaceous to lower Paleocene rocks in North America, named for exposures studied along Hell Creek, near Jordan, Montana...


 United States

A baenid

Plastomenoides

Junior synonym
  • Hutchison

Early Paleocene

 United States

Junior synonym of Hutchemys.

Procolina
Procolina
Procolina is an extinct genus of procolophonid parareptile known from partial remains found in Early Triassic rocks of Czatkowice 1, Poland. It was first named by Magdalena Borsuk−Białynicka; and Mariusz Lubka in 2009 and the type species is Procolina teresae...


Valid
  • Borsuk−Białynicka
  • Lubka

early Late Olenekian

Czatkowice 1

 Poland

A procolophonine procolophonid
Procolophonid
The Procolophonids - family Procolophonidae - are a group of small reptiles. Skulls have been discovered, roughly 5 cm in diameter....


Bony fish

Newly named Tetrapodomoprhs
Name Status Authors Age Unit Location Notes Images
Heddleichthys
Heddleichthys
Heddleichthys is a genus of prehistoric sarcopterygian , from the end of the Devonian period . It was discovered in Dura Den Formation, Scotland. Heddleichthys is a derived tristichopterid, the first from Britain....


Valid
  • Snitting

Famennian (Late Devonian)

Dura Den Formation

 Kingdom of Scotland
Langlieria
Langlieria
Langlieria is a genus of prehistoric sarcopterygian , from the end of the Devonian period . It was discovered in Belgium....


Valid
  • Clément
  • Snitting
  • Ahlberg

Famennian (Late Devonian)

Evieux Formation

 Belgium
  • Shimada, K. and Everhart, M.J. 2009. First record of Anomoeodus (Osteichthyes: Pycnodontiformes) from the Upper Cretaceous Niobrara Chalk of western Kansas. Kansas Academy of Science, Transactions 112(1/2):98-102.


A new species of late Maastrichtian bony fish (Ichthyodectiformes: Saurocephalus) from Jordan, Saurocephalus longicorpus described by Kaddumi (2009)

A new species of late Maastrichtian bony fish (Aulopiformes: Enchodontidae) from Jordan, Enchodus harranaensis described by Kaddumi (2009)

Reference:
Kaddumi, H. F. 2009. Fossils of the Harrana Fauna and the Adjacent Areas. Publications of the Etrnal Rive Museum of Natural History, Amman. 324 pp.

Basal archosauromorphs

Newly named basal archosauromorphs
Name Status Authors Age Unit Location Notes Images

Czatkowiella
Czatkowiella
Czatkowiella is an extinct genus of long-necked archosauromorph known from Early Triassic rocks of Czatkowice 1, Poland. It was first named by Magdalena Borsuk−Białynicka and Susan E. Evans in 2009 and the type species is Czatkowiella harae.- Phylogeny :Cladogram after Borsuk−Białynicka & Evans ....


Valid
  • Borsuk−Białynicka
  • Evans
    Susan E. Evans
    Susan E. Evans is British paleontologist and herpetologist. She is the author or co-author of over 100 peer-reviewed papers and book chapters....


earliest Late Olenekian

Czatkowice 1

 Poland

A long−necked archosauromorph
Archosauromorpha
Archosauromorpha is an infraclass of diapsid reptiles that first appeared during the late Permian and became more common during the Triassic. Included in this infraclass are the groups Rhynchosauria, Trilophosauridae, Prolacertiformes, Archosauriformes, and, tentatively, Choristodera...


Aves

  • Anfinson, O.A., Lockley, M.G., Kim, S.H., Kim, K.S., and Kim, J.Y. 2009. First report of the small bird track Koreanaornis from the Cretaceous of North America: implications for avian ichnotaxonomy and paleoecology. Cretaceous Research. .
  • Lockley, M., Chin, K., Houck, K., Matsukawa, M., and Kukihara, R. 2009. New interpretations of Ignotornis, the first-reported Mesozoic avian footprints: implications for the paleoecology and behavior of an enigmatic Cretaceous bird. Cretaceous Research. .
  • Bell, A. and Everhart, M.J. 2009. A new specimen of Parahesperornis (Aves: Hesperornithiformes) from the Smoky Hill Chalk (Early Campanian) of western Kansas. Kansas Academy of Science, Transactions 112(1/2):7-14.

Newly named birds
Name Status Authors Age Unit Location Notes Images

Alamitornis
Alamitornis
Alamitornis is an extinct genus of basal ornithuromorph bird, possible within the family Patagopterygidae. Remains have been found from the Upper Cretaceous Los Alamitos Formation in Río Negro Province, Argentina. It was first named by Federico L. Agnolin and Agustín G. Martinelli in 2009 and the...


Valid
  • Agnolin
  • Martinelli

Late Cretaceous

Los Alamitos Formation
Los Alamitos Formation
The Los Alamitos Formation is a geological formation in Rio Negro, Argentina whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.-Dinosaurs:-Mammaliaforms:-References:...


 Argentina


Elbretornis
Elbretornis
Elbretornis is an extinct genus of enantiornithine which existed in what is now Salta Province, Argentina during the late Cretaceous period. It is known from the holotype PVL 4022, left humerus and associated right radius, ulna, scapula and coracoid, recovered from the El Brete locality , Lecho...


Valid
  • Walker
  • Dyke

Maastrichtian

Lecho Formation
Lecho Formation
The Lecho Formation is a geological formation in Argentina whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation....


 Argentina

An enantiornithine.

Jianchangornis
Jianchangornis
Jianchangornis a genus of basal ornithurine bird. Fossils were recovered from the Jiufotang Formation at Liaoning, People's Republic of China....


Valid
  • Zhou
  • Zhang
  • Li

Lower Cretaceous (Albian)

Jiufotang Formation
Jiufotang Formation
The Jiufotang Formation is an Early Cretaceous geological formation in Chaoyang, Liaoning which has yielded fossils of feathered dinosaurs, primitive birds, pterosaurs, and other organisms. . It is a member of the Jehol group. The exact age of the Jiufotang has been debated for years, with...


 Mainland China

Basal ornithurine.

Martinavis minor

Valid
  • Walker
  • Dyke

Maastrichtian

Lecho Formation
Lecho Formation
The Lecho Formation is a geological formation in Argentina whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation....


 Argentina

An enantiornithine.

M. saltariensis
Martinavis
Martinavis is an extinct genus of enantiornithine bird which existed in what is now southern France, North America and Salta Province, Argentina during the late Cretaceous period. It was named by Cyril A. Walker, Eric Buffetaut and Gareth J. Dyke in 2007, and the type species is Martinavis...


Valid
  • Walker
  • Dyke

Maastrichtian

Lecho Formation
Lecho Formation
The Lecho Formation is a geological formation in Argentina whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation....


 Argentina

An enantiornithine.

M. whetstonei
Martinavis
Martinavis is an extinct genus of enantiornithine bird which existed in what is now southern France, North America and Salta Province, Argentina during the late Cretaceous period. It was named by Cyril A. Walker, Eric Buffetaut and Gareth J. Dyke in 2007, and the type species is Martinavis...


Valid
  • Walker
  • Dyke

Maastrichtian

Lecho Formation
Lecho Formation
The Lecho Formation is a geological formation in Argentina whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation....


 Argentina

An enantiornithine.

Rapaxavis
Rapaxavis
Rapaxavis a genus of enantiornithine bird. Fossils were recovered from the Jiufotang Formation at Liaoning, People's Republic of China....


Valid
  • Morschhauser
  • Varricchio
  • et al.

Lower Cretaceous

Jiufotang Formation
Jiufotang Formation
The Jiufotang Formation is an Early Cretaceous geological formation in Chaoyang, Liaoning which has yielded fossils of feathered dinosaurs, primitive birds, pterosaurs, and other organisms. . It is a member of the Jehol group. The exact age of the Jiufotang has been debated for years, with...


 Mainland China

A longipterygid
Longipterygidae
Longipterygidae is a family of early enantiornithine birds from the early Cretaceous Period of China. All known specimens come from the Jiufotang Formation and Yixian Formation, dating to the early Aptian age, 122-120 million years ago.-Description:...

 enantiornithine.

Shanweiniao
Shanweiniao
Shanweiniao is an extinct genus of long-beaked enantiornithine bird from Early Cretaceous China. One species is known, Shanweiniao cooperorum. There is one known fossil, a slab and counterslab. The fossil is in the collection of the Dalian Natural History Museum, and has accession number DNHM...


Valid
  • O'Connor
  • Wang
  • et al.

Lower Cretaceous

Yixian Formation
Yixian Formation
The Yixian Formation is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans 11 million years during the early Cretaceous period...


 Mainland China

A longipterygid enantiornithine.

Talpanas
Talpanas
Talpanas is an extinct genus of duck containing only the species Talpanas lippa. It was first described by Andrew L. Iwaniuk, Storrs L. Olson, and Helen F. James in the journal Zootaxa in November 2009. It was endemic to the Hawaiian island of Kauai where the fossil remains were unearthed in the...


Valid
  • Olson
  • James

Holocene

 United States

A Hawaiian duck that probably lived a kiwi
Kiwi
Kiwi are flightless birds endemic to New Zealand, in the genus Apteryx and family Apterygidae.At around the size of a domestic chicken, kiwi are by far the smallest living ratites and lay the largest egg in relation to their body size of any species of bird in the world...

-like lifestyle.

Crurotarsans

  • Delfino, M., and Smith, T. 2009. A reassessment of the morphology and taxonomic status of 'Crocodylus' depressifrons Blainville, 1855 (Crocodylia, Crocodyloidea) based on the Early Eocene remains from Belgium. Zoological Journal of the Linnean Society 156(1):140-167. doi: 10.1111/j.1096-3642.2009.00478.x.

Newly named crurotarsans
Name Status Authors Age Unit Location Notes Images
Armadillosuchus
Armadillosuchus
Armadillosuchus is an extinct genus of sphagesaurid crocodylomorph. It was described in February 2009 from the Late Cretaceous Bauru Basin of Brazil. Sphagesaurids share a number of mammal-like features in their teeth and jaws, although they are unrelated to mammals...


Valid
  • Marinho
  • Carvalho

Late Cretaceous

Adamantina Formation
Adamantina Formation
The Adamantina Formation is a geological formation in Brazil whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation...


 Brazil

Notosuchia
Notosuchia
Notosuchia is a suborder of primarily Gondwanan mesoeucrocodylian crocodylomorphs that lived during the Cretaceous. Fossils have been found from South America, Africa, and Asia...

n with heavy, armadillo-like body armor consisting of flexible bands and rigid shields


Barcinosuchus
Barcinosuchus
Barcinosuchus is an extinct genus of carnivorous metasuchian from the early Cretaceous period. It is a peirosaurid which lived during the early Cretaceous period in what is now Chubut Province, Argentina. It is known from the holotype MPEF-PV 3095, which consists of skull, mandible, and...


Valid
  • Leardi
  • Pol

Aptian - Albian

Cerro Barcino Formation
Cerro Barcino Formation
The Cerro Barcino Formation is a geological formation in South America whose strata span the mid-late Cretaceous period. Dinosaur remains are among the fossils that have been recovered from the formation....


 Argentina

A peirosaurid
Peirosauridae
Peirosauridae is a Gondwanan family of mesoeucrocodylians that lived during the Cretaceous period. It was a clade of terrestrial crocodyliforms that evolved a rather dog-like form, and were terrestrial carnivores. It was phylogenetically defined in 2004 as the most recent common ancestor of...

Collilongus
Collilongus
Collilongus is an extinct genus of small archosauriform, possibly a rauisuchian, known from Early Triassic rocks of Czatkowice 1, Poland. It was first named by Magdalena Borsuk−Białynicka; and Andriej G. Sennikov in 2009. The type and only known species is Collilongus rarus...


Valid
  • Borsuk−Białynicka
  • Sennikov

Early Olenekian

Czatkowice 1

 Poland

Possible rauisuchia
Rauisuchia
Rauisuchia is a group of predatory and mostly large Triassic archosaurs. As a clade, Rauisuchia includes these Triassic forms and all crocodylomorphs, which are descendants of Triassic rauisuchians. The group in its traditional sense is paraphyletic, because it does not include crocodylomorph...

n
Coringasuchus
Coringasuchus
Coringasuchus is a genus of mesoeucrocodylian crocodyliform, perhaps a notosuchian. It is known from fossils including cranial material discovered in rocks of the early Cenomanian-age Upper Cretaceous Alcântara Formation, Cajual Island, northeastern Brazil. Coringasuchus was described by A.W.A....


Valid
  • Kellner
  • Pinheiro
  • et al.

Early Cenomanian

Alcântara Formation
Alcântara Formation
The Alcântara Formation is a geological formation in northeastern Brazil whose strata date back to the Upper Cretaceous.-Fishes:-Crurotarsans:-Ornithodirans:...


 Brazil
Duerosuchus
Duerosuchus
Duerosuchus is an extinct genus of crocodilian. Remains have been found from Corrales del Vino in Zamora, Spain, and are middle Eocene in age...


Valid
  • Santiago
  • Andrés

Middle Eocene

 Spain
Hypselorhachis
Hypselorhachis
Hypselorhachis is a genus of extinct reptile, possibly a ctenosauriscid archosaur related to Ctenosauriscus. It lived during the Triassic Period. It is currently known only from a single vertebra found from the Middle Triassic Manda Beds in Tanzania....


Valid
  • Butler
  • Barrett
  • et al.

Middle Triassic

Manda Beds

 Tanzania

Possible ctenosauriscid
Ctenosauriscidae
Ctenosauriscidae is an extinct family of pseudosuchian archosaurs within the clade Poposauroidea. Ctenosauriscids existed in Africa, Asia, Europe and North America during the Early Triassic to the Middle Triassic period . All species had large "sails" on their backs...

Kaprosuchus
Kaprosuchus
Kaprosuchus is an extinct genus of mahajangasuchid crocodyliform. It is known from a single nearly complete skull collected from the Upper Cretaceous Echkar Formation of Niger. The name means "boar crocodile" from the Greek kapros and souchos in reference to its unusually large caniniform teeth...


Valid
  • Sereno
    Paul Sereno
    Paul Callistus Sereno is an American paleontologist from the University of Chicago who discovered several new dinosaur species on several continents. He has conducted excavations at sites as varied as Inner Mongolia, Argentina, Morocco, and Niger...

  • Larson

Upper Cretaceous

Echkar Formation

 Niger

Unusual large mahajangasuchid
Mahajangasuchidae
Mahajangasuchidae is an extinct family of neosuchian crocodyliforms. It currently contains two genera, Mahajangasuchus and Kaprosuchus, both of which lived during the Late Cretaceous in Gondwana...

 with hypertrophied caniniform teeth and posteriorly projecting horns
Khoratosuchus
Khoratosuchus
Khoratosuchus is an extinct genus of neosuchian crocodylomorph which existed in northeast Thailand during the early Cretaceous period. Its type species is Khoratosuchus jintasakuli. Khoratosuchus is the youngest and most advanced Mesozoic crocodyliform yet known from Thailand...


Valid
  • Lauprasert
  • Cuny
  • et al.

Early Cretaceous

 Thailand

Youngest Mesozoic crocodyliform yet known from Thailand
Thailand
Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

Laganosuchus
Laganosuchus
Laganosuchus is an extinct genus of stomatosuchid crocodyliform. Fossils have been found from Niger and Morocco and date back to the Upper Cretaceous. The name means "pancake crocodile" from the Greek laganon and souchos in reference to the shallow depth of the skull, which is characteristic of...

 

Valid
  • Sereno
    Paul Sereno
    Paul Callistus Sereno is an American paleontologist from the University of Chicago who discovered several new dinosaur species on several continents. He has conducted excavations at sites as varied as Inner Mongolia, Argentina, Morocco, and Niger...

  • Larson

Cenomanian

Echkar Formation 
Kem Kem Beds
Kem Kem Beds
The Kem Kem Beds is a geological formation in Morocco and Algeria whose strata date back to the Late Cretaceous...


 Niger
 Morocco
Miadanasuchus
Miadanasuchus
Miadanasuchus is an extinct genus of trematochampsid which existed in Maevarano Formation of Madagascar during the late Cretaceous period . It was first named by Erin L. Rasmusson Simons and Gregory A. Buckley in 2009 and the type species is Miadanasuchus oblita....

 

Valid
  • Simons
  • Buckley

Campanian

Maevarano Formation
Maevarano Formation
The Maevarano Formation is an Upper Cretaceous sedimentary rock formation found in the Mahajanga Province of northwestern Madagascar. It is most likely Maastrichtian in age, and records a seasonal, semiarid environment with rivers that had greatly varying discharges...


 Madagascar

A new genus for "Trematochampsa" oblita (Buffetaut & Taquet, 1979)
Morrinhosuchus
Morrinhosuchus
Morrinhosuchus is an extinct genus of notosuchian crocodyliform from the Late Cretaceous Adamantina Formation of Brazil. It is known from a mandible and a portion of the front of the skull collected from the municipality of Monte Alto in São Paulo state...


Valid
  • Iori
  • Carvalho

Late Cretaceous

Adamantina Formation
Adamantina Formation
The Adamantina Formation is a geological formation in Brazil whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation...


 Brazil

Notosuchian from Brazil
Penghusuchus
Penghusuchus
Penghusuchus is an extinct genus of tomistomine gavialid crocodilian. It is known from a skeleton found in Upper Miocene rocks of Penghu Island, off of Taiwan. It appears to be related to two other fossil Asian tomistomines: Tomistoma petrolica of southeastern China and Toyotamaphimeia...


Valid
  • Shan
  • Wu
  • et al.

Late Miocene

 Republic of China

A tomistomine crocodilia
Crocodilia
Crocodilia is an order of large reptiles that appeared about 84 million years ago in the late Cretaceous Period . They are the closest living relatives of birds, as the two groups are the only known survivors of the Archosauria...

n.
Polonosuchus
Polonosuchus
Polonosuchus is a genus of rauisuchian known from the late Triassic of Poland.It was described as Teratosaurus silesiacus in 2005 by Tomasz Sulej, and was transferred to the genus Polonosuchus by Brusatte et al. in 2009....


Valid
  • Brusatte
  • Butler
  • et al.

Late Carnian

 Poland

A new genus for "Teratosaurus" silesiacus (Sulej, 2005)
Yacarerani
Yacarerani
Yacarerani is an extinct genus of Late Cretaceous notosuchian crocodylomorph. Fossils have been found in 2002 from central Bolivia in Amboró National Park and are Turonian-Santonian in age. The genus was recently described in 2009 in the Journal of Vertebrate Paleontology...

 

Valid
  • Novas
  • Pais
  • et al.

Late Cretaceous

 Bolivia

Research

  • A new study on theropod furculae is published.
  • A "detailed description of the skull and mandible of the Chinese cerapodan ornithischian dinosaur Jeholosaurus shangyuanensis" is published.

  • Knoll, F., Padian, K., and de Ricqles, A. 2009. Ontogenetic change and adult body size of the early ornithischian dinosaur Lesothosaurus diagnosticus: Implications for basal ornithischian taxonomy. Gondwana Research. .
  • Matthews, J. C., Brusatte, S. L., Williams, S. A., and Henderson, M. D., 2009, The first Triceratops bonebed and its implications for gregarious behavior: Journal of Vertebrate Paleontology, v. 29, n. 1, p. 286-290.
  • Williamson, T. E., Carr, T. D., Williams, S. A., and Tremaine, K., 2009, Early ontogeny of pachycephalosaurine squamosals as revealed by juvenile specimens from the Hell Creek Formation, eastern Montana: Journal of Vertebrate Paleontology, v. 29, n. 1, p. 291-294.
  • Bittencourt, J.S., and A.W.A. Kellner. 2009. The anatomy and phylogenetic position of the Triassic dinosaur Staurikosaurus pricei Colbert, 1970. Zootaxa 2079:1-56.
  • Chin, K., Hartman, J.H., and Roth, B. 2009. Opportunistic exploitation of dinosaur dung: fossil snails in coprolites from the Upper Cretaceous Two Medicine Formation of Montana. Lethaia 42(2):185-198. .
  • Maidment, S.C.R., and Porro, L.B. 2009. Homology of the palpebral and origin of supraorbital ossifications in ornithischian dinosaurs. Lethaia. .
  • Gates, T.A., and Farke, A.A. 2009. Biostratigraphic and biogeographic implications of a hadrosaurid (Ornithopoda: Dinosauria) from the Upper Cretaceous Almond Formation of Wyoming, USA. Cretaceous Research. .
  • Moratalla, J.J., and Hernán, J. 2008. Los Cayos S y D: dos afloramientos con icnitas de saurópodos, terópodos y ornitópodos en el Cretácico Inferior del área de Los Cayos (Cornago, La Rioja, España). Estudios Geológicos 64(2):161-173. .
  • Taylor, M.P., Wedel, M.J., and Naish, D. 2009. Head and neck posture in sauropod dinosaurs inferred from extant animals. Acta Palaeontologica Polonica 54 (2): 213–220.

Hadrosaur chewing study

A study titled "Quantitative analysis of dental microwear in hadrosaurid dinosaurs, and the implications for hypotheses of jaw mechanics and feeding" is published by British paleontologists Mark Purnell
Mark Purnell
Dr Mark Andrew Purnell is a British palaeontologist, Reader of Geology at the University of Leicester.Purnell is an expert in conodont biostratigraphy and conodont palaeobiology, focussing especially on attempts to uncover the function of conodont elements...

, Paul Barrett and student Vince Williams. The paper examined the chewing methods and diet of hadrosaurid
Hadrosaurid
Hadrosaurids or duck-billed dinosaurs are members of the family Hadrosauridae, and include ornithopods such as Edmontosaurus and Parasaurolophus. They were common herbivores in the Upper Cretaceous Period of what are now Asia, Europe and North America. They are descendants of the Upper...

 ("duck billed") dinosaur
Dinosaur
Dinosaurs are a diverse group of animals of the clade and superorder Dinosauria. They were the dominant terrestrial vertebrates for over 160 million years, from the late Triassic period until the end of the Cretaceous , when the Cretaceous–Paleogene extinction event led to the extinction of...

s from the Late Cretaceous period
Late Cretaceous
The Late Cretaceous is the younger of two epochs into which the Cretaceous period is divided in the geologic timescale. Rock strata from this epoch form the Upper Cretaceous series...

. The scientists analyzed hundreds of microscopic scratches on the teeth of a fossilized Edmontosaurus
Edmontosaurus
Edmontosaurus is a genus of crestless hadrosaurid dinosaur. It contains two species: Edmontosaurus regalis and Edmontosaurus annectens. Fossils of E. regalis have been found in rocks of western North America that date from the late Campanian stage of the Cretaceous Period 73 million years ago,...

 jaw, and believe they determined exactly how a hadrosaur broke down and ate its food, which had previously eluded researchers.

The study found hadrosaurs had a unique way of eating unlike any creature living today. In contrast to a flexible lower jaw joint prevalent in today's mammal
Mammal
Mammals are members of a class of air-breathing vertebrate animals characterised by the possession of endothermy, hair, three middle ear bones, and mammary glands functional in mothers with young...

s, hadrosaurs had a unique hinge between the upper jaws and the rest of its skull. The team found the dinosaur's upper jaws pushed outwards and sideways while chewing, as the lower jaw slid against the upper teeth.

The study also concluded that hadrosaurs likely grazed
Grazing
Grazing generally describes a type of feeding, in which a herbivore feeds on plants , and also on other multicellular autotrophs...

 on horsetails and vegetation close to the ground, rather than browsing
Browsing (predation)
Browsing is a type of herbivory in which an herbivore feeds on leaves, soft shoots, or fruits of high growing, generally woody, plants such as shrubs. This is contrasted with grazing, usually associated with animals feeding on grass or other low vegetation...

 higher-growing leaves and twigs. However, Purnell said these conclusions were less secure than the more conclusive evidence regarding the motion of teeth while chewing. Previous studies found contradictory conclusions, and the issue remains a subject of debate.

The findings were published on June 30, 2009 in the journal, The Proceedings of the National Academy of Sciences
Proceedings of the National Academy of Sciences
The Proceedings of the National Academy of Sciences of the United States of America, usually referred to as PNAS, is the official journal of the United States National Academy of Sciences...

. Purnell said no previous study had ever employed this method of analyzing microscopic teeth scratches, and that the method could be used to study other areas of scientific research.

New taxa

Data courtesy of George Olshevky's dinosaur genera list. ~44 dinosaur genera were erected in 2009.
Name Status Authors Discovery year Age Unit Location Notes Images
Adeopapposaurus
Adeopapposaurus
Adeopapposaurus is a genus of prosauropod dinosaur from the Early Jurassic Cañón del Colorado Formation of San Juan, Argentina. It was similar to Massospondylus. Four partial skeletons with two partial skulls are known.The type specimen, PVSJ568, includes a skull and most of a skeleton to just...

Valid
  • Ricardo N. Martínez

Cañón del Colorado Formation
Canon del Colorado Formation
The Canon del Colorado Formation is a Mesozoic geologic formation. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.-See also:...


 Argentina


Aerosteon
Aerosteon
Aerosteon is a genus of allosauroid theropod dinosaur from the Late Cretaceous period of Argentina. Its remains were discovered in 1996 in the Anacleto Formation, dating to the Santonian stage . The type and only known species is A. riocoloradensis...

Valid
  • Sereno
    Paul Sereno
    Paul Callistus Sereno is an American paleontologist from the University of Chicago who discovered several new dinosaur species on several continents. He has conducted excavations at sites as varied as Inner Mongolia, Argentina, Morocco, and Niger...

  • R. N. Martinez
  • et al.

Rio Colorado Formation
Rio Colorado Formation
The Rio Colorado Formation is a Mesozoic geologic formation. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.-Ornithischians:-Sauropods:Titanosaur eggs are known from Neuquen province....


 Argentina

Albalophosaurus
Albalophosaurus
Albalophosaurus is a genus of cerapod ornithischian dinosaur. It was described in 2009 from remains found in 1997 by Yoshinori Kobayashi from the Kuwajima Formation of central Japan, outcropping in Hakusan in the Ishikawa Prefecture...

 
Valid
  • Ohashi
  • Barrett

Kuwajima Formation
Kuwajima Formation
The Kuwajima Formation is an Early Cretaceous geologic formation. Dinosaur remains are among the fossils that have been recovered from the formation, including Albalophosaurus yamaguchiorum. The multituberculate mammals Hakusanobaatar matsuoi and Tedoribaatar reini have also been recovered from it....


 Japan
Albertonykus
Albertonykus
Albertonykus is a genus of alvarezsaurid dinosaur from lower Maastrichtian-age rocks of the Horseshoe Canyon Formation of Alberta, Canada. It is known from forelimb and hindlimb remains from multiple individuals. All but two of the specimens come from a bonebed dominated by Albertosaurus...

Valid
  • Longrich
  • Currie

lower Maastrichtian

Horseshoe Canyon Formation
Horseshoe Canyon Formation
The Horseshoe Canyon Formation is part of the Edmonton Group and is up to 230m in thickness. It is Late Campanian to Early Maastrichtian in age and is composed of mudstone, sandstone, and carbonaceous shales...


 Canada
Anchiornis
Anchiornis
Anchiornis is a genus of small, feathered, deinonychosaurian dinosaur. The genus Anchiornis contains the type species Anchiornis huxleyi, named in honor of Thomas Henry Huxley, an early proponent of biological evolution, and the first to propose a close evolutionary relationship between birds and...

Valid
  • Xu X.
  • Zhao Q.
  • et al.

Tiaojishan Formation
Tiaojishan Formation
The Tiaojishan Formation is a geological formation in Hebei and Liaoning, People's Republic of China, dating to the middle-late Jurassic period . It is known for its fossil plants, and is made up mainly of pyroclastic rock interspersed with basic volcanic and sedimentary rocks...


 Mainland China

Angulomastacator
Angulomastacator
Angulomastacator is a genus of duck-billed dinosaur from the Campanian-age Aguja Formation of Big Bend National Park, Texas...


Valid
  • J. R. Wagner
  • Lehman

Aguja Formation
Aguja Formation
The Aguja Formation is a geological formation in North America, exposed in Texas, whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.-Ammonites:-Crurotarsans:...


 United States

Arenysaurus
Arenysaurus
Arenysaurus is a genus of hadrosaurid dinosaur from the Late Cretaceous. It is known from a partial skull and skeleton found in late Maastrichtian-age rocks of the Pyrenees Mountains in Spain. The type species is A. ardevoli, described in 2009 by Pereda-Suberbiola et al., a group of researchers...


Valid
  • Xabier Pereda-Suberbiolaa
  • José Ignacio Canudob
  • et al.

Australovenator
Australovenator
Australovenator is a genus of allosauroid theropod dinosaur from late Albian -age rocks of Australia...


Valid
  • Hocknull
  • White
  • et al.

Winton Formation
Winton Formation
The Winton Formation is a Cretaceous formation in central-western Queensland, Australia. The sauropod dinosaur Austrosaurus is found in the early Cretaceous Winton formation....


 Australia
Baotianmansaurus
Baotianmansaurus
Baotianmansaurus is a genus of titanosauriform sauropod dinosaur. Its fossils have been found in Upper Cretaceous rocks in Henan, China. The type species is B. henanensis, described in 2009.-External links:*...


Valid
  • Zhang, X.
  • Lü, J.
  • et al.

Gaogou Formation
Gaogou Formation
The Gaogou Formation is a Mesozoic geologic formation. Fossil dinosaur eggs have been reported from the formation.-See also:* List of dinosaur-bearing rock formations** List of stratigraphic units with dinosaur trace fossils*** Dinosaur eggs-References:...


 Mainland China

Barrosasaurus
Barrosasaurus
Barrosasaurus is a genus of titanosaurian sauropod dinosaur, first described by Leonardo Salgado and Rodolfo Coria in 2009. The fossils, consisting of three fossil dorsal vertebrae, are well-preserved but incomplete. They were discovered in the Anacleto Formation of the Neuquén province of western...

Valid
  • Salgado
  • Coria

Anacleto Formation
Anacleto Formation
The Anacleto Formation is a geologic formation with outcroppings in the Argentine Patagonian provinces of Mendoza, Río Negro, and Neuquén. It is the youngest formation within the Neuquén Group and belongs to the Río Colorado Subgroup...


 Argentina
Ceratonykus
Ceratonykus
Ceratonykus is a genus of alvarezsaurid theropod dinosaur that existed in the late Cretaceous period. The discovery of a fragmented skeleton in Mongolia in early 2009 has led scientists to question where alvarezsaurids fit taxonomically into Theropoda.-Description:Ceratonykus was a small,...


Valid
  • Alifanov
  • Barsbold

Baruungoyot Formation

 Mongolia
Diamantinasaurus
Diamantinasaurus
Diamantinasaurus is a genus of derived titanosaurian dinosaur from late Albian -age rocks of Australia...


Valid
  • Hocknull
  • White
  • et al.

Winton Formation
Winton Formation
The Winton Formation is a Cretaceous formation in central-western Queensland, Australia. The sauropod dinosaur Austrosaurus is found in the early Cretaceous Winton formation....


 Australia

Elrhazosaurus
Elrhazosaurus
Elrhazosaurus is a genus of basal iguanodontian dinosaur, known from isolated bones found in Lower Cretaceous rocks of Niger. These bones were initially thought to belong to a species of the related dryosaurid Valdosaurus, but have since been reclassified.-Discovery and history:Elrhazosaurus is...


Valid
  • Galton

Elrhaz Formation
Elrhaz Formation
The Elrhaz Formation is a geological formation in Niger whose strata date back to the Early Cretaceous...


 Niger
Helioceratops
Helioceratops
Helioceratops is a genus of neoceratopsian dinosaur from the Middle Cretaceous of China. The type species is H. brachygnathus, described in 2009 by a group of paleontologists led by Jin Liyong. Helioceratops was discovered in the Quantou Formation of China's eastern Jilin province and is known...


Valid
  • Jin
  • Chen
  • et al.

Quantou Formation
Quantou Formation
The Quantou Formation is a Mesozoic geologic formation. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.-See also:* List of dinosaur-bearing rock formations...


 Mainland China
Hesperonychus
Hesperonychus
Hesperonychus was a genus of small, carnivorous dromaeosaurid dinosaur. There is one described species, Hesperonychus elizabethae; the type species was named in honor of the woman who collected it in 1982...


Valid
  • Longrich
  • Currie

Dinosaur Park Formation
Dinosaur Park Formation
The Dinosaur Park Formation is the uppermost member of the Judith River Group, a major geologic unit in southern Alberta. It was laid down over a period of time between about 76.5 and 75 million years ago. The formation is made up of deposits of a high-sinuosity fluvial system, and is capped...


 Canada

Smallest known dinosaur from North America.

Jintasaurus
Jintasaurus
Jintasaurus is a genus of hadrosauriform dinosaur described by Hai-Lu You and Da-Qing Li in 2009. The type species is J. meniscus. Jintasaurus lived during the Early Cretaceous of what is now Gansu, northwestern China. The discovery supports the theory that hadrosaurs originated in Asia....


Valid
  • You
  • Li

Xinminpu Group

 Mainland China

Kemkemia
Kemkemia
Kemkemia is a genus of theropod dinosaur living in the Cretaceous, described from a single fossil in 1999 recovered from Morocco by an Italian team searching for fossil invertebrates....


Valid
  • Cau
  • Maganuco

Kem Kem Beds
Kem Kem Beds
The Kem Kem Beds is a geological formation in Morocco and Algeria whose strata date back to the Late Cretaceous...


 Morocco
Kinnareemimus
Valid
  • Buffetaut
  • Suteethorn
  • Tong

Sao Khua Formation
Sao Khua Formation
The Sao Khua Formation is a middle member of the Khorat Group. It consists of an alteration of grayish-reddish brown siltstone and clay, and pale red to yellowish-gray, fine to medium-grained sandstone. Rare pale red to light gray conglomerates, containing carbonate pebbles, are also characteristic...


 Thailand
Kol
Kol (dinosaur)
Kol is a genus of alvarezsaurid theropod dinosaur from the Late Cretaceous of Mongolia. The type specimen was excavated from the Ukhaa Tolgod locality of the Djadochta Formation, dating to about 75 million years ago. It is believed to have been about twice the size of the contemporary Shuvuuia...


Valid
  • Turner
  • Nesbitt
  • Norell

Djadochta Formation
Djadochta Formation
The Djadochta Formation is situated in central Asia and dates from the Late Cretaceous Period. Laid down in the early Campanian, possibly starting in the latest Santonian, it is dated somewhat uncertainly at about 84-75 mya...


 Mongolia

Leshansaurus
Leshansaurus
Leshansaurus is a genus of theropod dinosaur from the Mid to Late Jurassic Dashanpu Formation of what is now China. It was described in 2009 by a team of Chinese paleontologists. The type species is L. qianweiensis. Fossils of Leshansaurus were discovered in strata from the Shangshaximiao...


Valid
  • Li
  • Peng
  • et al.

Shangshaximiao Formation

 Mainland China
Levnesovia
Levnesovia
Levnesovia is a genus of hadrosauroid dinosaur from the Late Cretaceous of Uzbekistan. It was related to Bactrosaurus. The type species is L. transoxiana. The genus name honours the late Russian paleontologist Lev Nesov, and the specific name refers to the ancient region Transoxiana...

Valid
  • Sues
  • Averianov

Bissekty Formation
Bissekty Formation
The Bissekty Formation is situated in the Kyzyl Kum desert of Uzbekistan, and dates from the late Cretaceous Period. Laid down in the early the Turonian to Coniacian stages, it is dated to about 90-85 ma .The Bissekty Formation is characterised by a mix of marine, brackish, freshwater, and...


 Uzbekistan

The oldest Hadrosauroidea
Hadrosauroidea
Hadrosauroidea is a clade or superfamily of ornithischian dinosaurs that includes the "duck-billed" dinosaurs, or hadrosaurids, and their close relatives. Many primitive hadrosauroids, such as the sail-backed Ouranosaurus, have traditionally been included in a paraphyletic "Iguanodontidae"...

n
Limusaurus
Limusaurus
Limusaurus is a genus of toothless herbivorous theropod dinosaur from the Jurassic Upper Shishugou Formation in the Junggar Basin of western China. Limusaurus is also the first definitely known ceratosaur from Eastern Asia, including China...

Valid
  • Xu

Shishugou Formation
Shishugou Formation
The Shishugou Formation is a geological formation in Xinjiang, China, whose strata date back to the Late Jurassic period. Dinosaur remains are among the fossils that have been recovered from the formation....


 Mainland China

The first Asian ceratosaur to be discovered
Luoyanggia
Luoyanggia
Luoyanggia is a genus of oviraptorid dinosaur first reported from the Ruyang Basin, Henan Province of central China in 2009. The formation dates to the Cenomanian stage of the late Cretaceous period, around 96 million years ago. The type species is L. liudianensis....

Valid
  • Xu
  • et al.

Mangchuan Formation

 Mainland China

An oviraptorosaur
Malarguesaurus
Malarguesaurus
Malarguesaurus is a genus of titanosauriform sauropod dinosaur from the Late Cretaceous of Mendoza Province, Argentina. Its fossils, consisting of tail vertebrae, chevrons, ribs, and limb bones, were found in the late Turonian-early Coniacian-age Portezuelo Formation of the Neuquén Group...

Valid
  • González Riga
  • Previtera
  • Pirrone

Portezuelo Formation
Portezuelo Formation
The Portezuelo Formation is a geologic formation outcropping in the Mendoza, Río Negro and Neuquén provinces of Argentina. It is the fourth-oldest formation in the Neuquén Group and the older of the two formations in the Río Neuquén Subgroup...


 Argentina
Minotaurasaurus
Minotaurasaurus
Minotaurasaurus is a genus of ankylosaurine ankylosaurid dinosaur that lived during the Late Cretaceous. It was named in 2009 by Clifford A. Miles and Clark J. Miles and the type species is Minotaurasaurus ramachandrani. The generic name is explained by the describers as meaning "man-bull reptile";...

Valid
  • Clifford A. Miles
  • Clark J. Mikes
Miragaia
Miragaia (dinosaur)
Miragaia is a genus of stegosaurid dinosaur. Its fossils have been found in Upper Jurassic rocks in Portugal...

Valid
  • Mateus
  • Maidment
  • Christiansen

  • Sobral Formation
    Sobral Formation
    The Sobral Formation is a palaeontological formation located in Antarctica. It dates to the Danian stage of the Lower Paleocene period.Spectacular fossils documenting the wildlife soon after the dinosaurs became extinct are found in this formation. One of the most significant sites is on Seymour...


     Portugal

    Long necked stegosaur.

    Owenodon
    Owenodon
    Owenodon is a genus of iguanodontian dinosaur known from a partial lower jaw discovered in Early Cretaceous-age rocks of Durlston Bay, Dorset, United Kingdom. The specimen, NHM R2998, comes from the Purbeck Limestone, dating to the middle Berriasian stage...


    Valid
    • Galton

    Purbeck Limestone
    Panphagia
    Panphagia
    Panphagia is a genus of sauropodomorph dinosaur described in 2009. It lived 231 million years ago, during the late Ladinian age of the mid Triassic period , in what is now northwestern Argentina...

    Valid
    • Martinez
    • Alcober

    Ischigualasto Formation

     Argentina

    The most basal known sauropodomorph.

    Qiaowanlong
    Qiaowanlong
    Qiaowanlong is a genus of sauropod dinosaur. Fossils belonging to the genus were found in 2007 from the Yujinzi Basin of Gansu, China, and were described in 2009 in the Proceedings of the Royal Society B. The remains come from a geological formation called the Xinminpu Group, dating to the Early...

    Valid
    • You
    • Li

    Xinminpu Group

     Mainland China

    Raptorex
    Raptorex
    Raptorex is a dubious genus of tyrannosaurid dinosaur. Its fossil remains consist of a single juvenile specimen probably uncovered in Mongolia, or possibly northeastern China. The type species is R. kriegsteini, described in 2009 by Sereno and colleagues. The genus name is derived from Latin ,...

    • Sereno
      Paul Sereno
      Paul Callistus Sereno is an American paleontologist from the University of Chicago who discovered several new dinosaur species on several continents. He has conducted excavations at sites as varied as Inner Mongolia, Argentina, Morocco, and Niger...

    • Brusatte
    • et al.

    Yixian Formation
    Yixian Formation
    The Yixian Formation is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans 11 million years during the early Cretaceous period...


     Mainland China

    Tyrannosauroidea
    Tyrannosauroidea
    Tyrannosauroidea is a superfamily of coelurosaurian theropod dinosaurs that includes the family Tyrannosauridae as well as more basal relatives. Tyrannosauroids lived on the Laurasian supercontinent beginning in the Jurassic Period...

    Ruyangosaurus
    Ruyangosaurus
    Ruyangosaurus is a genus of sauropod dinosaur recovered from the Late Cretaceous Mangchuan Formation of China. The type species is R. giganteus, described in 2009 by a group of scientists from the Chinese Academy of Sciences and the Henan Geological Museum.Along with Huanghetitan and Daxiatitan,...


    Valid
    • Lu
    • Xu
    • et al.

    Mangchuan Formation

     Mainland China
    Shaochilong
    Shaochilong
    Shaochilong is a genus of carcharodontosaurid dinosaur from the mid Cretaceous Ulansuhai Formation of China . The type species, S...


    Valid
    • Brusatte
    • Benson
    • et al.

    Ulansuhai Formation
    Ulansuhai Formation
    The Ulansuhai Formation is a geological formation in Inner Mongolia, north China. Dinosaur remains are among the fossils that have been recovered from the formation....


     Mainland China
    Shidaisaurus
    Shidaisaurus
    Shidaisaurus is a genus of basal tetanuran theropod dinosaur. Its fossil was found in early Middle Jurassic-age rocks of the Upper Lufeng Formation in Yunnan, China. It is known from a partial skeleton, holotype DML-LCA 9701-IV, found at the bottom of an assemblage of nine dinosaur individuals,...


    Valid
    • Wu
    • Currie
    • et al.

    Upper Lufeng Formation

     Mainland China

    Sinotyrannus
    Sinotyrannus
    Sinotyrannus is a genus of large basal proceratosaurid dinosaur, a relative of tyrannosaurids which flourished in North America and Asia during the Jurassic and early Cretaceous periods. Sinotyrannus is known from a single incomplete fossil specimen including a partial skull, from the Early...


    Valid
    • Ji
    • Ji
    • Zhang

    Jiufotang Formation
    Jiufotang Formation
    The Jiufotang Formation is an Early Cretaceous geological formation in Chaoyang, Liaoning which has yielded fossils of feathered dinosaurs, primitive birds, pterosaurs, and other organisms. . It is a member of the Jehol group. The exact age of the Jiufotang has been debated for years, with...


     Mainland China
    Skorpiovenator
    Skorpiovenator
    Skorpiovenator is a genus of abelisaurid theropod dinosaur from the late Cretaceous period of Argentina.The type species, Skorpiovenator bustingorryi, is known from a single, nearly complete skeleton missing only most of the forelimbs and parts of the tail...

    Valid
    • Canale
    • Scanferla
    • et al.

    Huincul Formation
    Huincul Formation
    The Huincul Formation is a geologic formation that outcrops in Río Negro and Neuquén provinces of Argentina. It is the second formation in the Río Limay Subgroup, the oldest subgroup within the Neuquén Group...


     Argentina

    Spinophorosaurus
    Spinophorosaurus
    Spinophorosaurus is a genus of early sauropod dinosaur from Niger. It was recovered in a rock formation belonging to the lower part of the Irhazer Group, the age of which is unknown but may be Middle Jurassic or older. It is unusual for having spiked osteoderms, probably from the tail, similar to...

    • Remes
    • Ortega
    • et al.

    Irhazer Group

     Niger

    Sauropoda
    Sauropoda
    Sauropoda , or the sauropods , are an infraorder of saurischian dinosaurs. They had long necks, long tails, small heads , and thick, pillar-like legs. They are notable for the enormous sizes attained by some species, and the group includes the largest animals to have ever lived on land...


    Tatankacephalus
    Tatankacephalus
    Tatankacephalus is a basal genus of ankylosaurid dinosaur that lived during the Early Cretaceous.Its fossil has been collected from the Cloverly Formation of central Montana during 1996, 1997 and 1998, in the region of the Middle Dome in Wheatland County. The type species is T. cooneyorum,...


    Valid
    • Parsons
    • Parsons

    Cloverly Formation
    Cloverly Formation
    The Cloverly Formation are Lower Cretaceous strata located in Montana and Wyoming, in the western United States. The term now includes strata that had formerly been called the Dakota Formation in central and southern Wyoming.-Members:...


     United States

    Tawa
    Tawa (dinosaur)
    Tawa is a genus of theropod dinosaur from the Late Triassic period. It is estimated to have been 2 m long...


    Valid
    • Nesbitt
    • Smith
    • et al.

    Chinle Formation
    Chinle Formation
    The Chinle is a geologic formation that is spread across the U.S. states of northern Arizona, Nevada, Utah, western New Mexico, and western Colorado. The Chinle is controversially considered to be synonymous to the Dockum Group in eastern Colorado, eastern New Mexico, southwestern Kansas, the...


     United States

    Tethyshadros
    Tethyshadros
    Tethyshadros is a genus of hadrosauroid dinosaur from Italy.The genus was named and described by Italian paleontologist Fabio Marco Dalla Vecchia in 2009. Its only and type species is Tethyshadros insularis. The genus name refers to the Tethys Ocean and the Hadrosauroidea...


    Valid
    • Dalla Vecchia

    Liburnia Formation

     Italy

    Tianyulong
    Tianyulong
    Tianyulong is a genus of heterodontosaurid ornithischian dinosaur. The only species is T. confuciusi, whose remains were discovered in Jianchang County, Western Liaoning Province, China...


    Valid
    • Zheng
    • You
    • et al.

    Tiaojishan Formation
    Tiaojishan Formation
    The Tiaojishan Formation is a geological formation in Hebei and Liaoning, People's Republic of China, dating to the middle-late Jurassic period . It is known for its fossil plants, and is made up mainly of pyroclastic rock interspersed with basic volcanic and sedimentary rocks...


     Mainland China

    Wintonotitan
    Wintonotitan
    Wintonotitan is a genus of titanosauriform dinosaur from late Albian -age rocks of Australia. It is known from partial postcranial remains.-Description and history:...


    Valid
    • Hocknull
    • White
    • et al.

    Winton Formation
    Winton Formation
    The Winton Formation is a Cretaceous formation in central-western Queensland, Australia. The sauropod dinosaur Austrosaurus is found in the early Cretaceous Winton formation....


     Australia
    Xianshanosaurus
    Xianshanosaurus
    Xianshanosaurus is a genus of sauropod dinosaur from the early Late Cretaceous of what is now China. It was described in 2009 by a team of Chinese paleontologists. The type species is X. shijiagouensis....

    Valid
    • Xu
    • et al.

    Mangchuan Formation

     Mainland China

    A sauropod

    "Xinghesaurus"

    Nomen nudum
    Nomen nudum
    The phrase nomen nudum is a Latin term, meaning "naked name", used in taxonomy...

    • Hasegawa
    • Carpenter
    • et al.
    Name published without scientific description in Japanese guidebook "Dinosaur Expo 2009: The Miracle of Deserts"

    Zanabazar
    Zanabazar (dinosaur)
    Zanabazar is a genus of troodontid dinosaur, which lived during the Late Cretaceous period in Mongolia.Fossils of this theropod have been found in the Nemegt Formation of Mongolia. Originally classified as a new species of the genus Saurornithoides by Rinchen Barsbold in 1974, based on a small...


    Valid
    • Norell
    • Makovicky
    • et al.

    Nemegt Formation
    Nemegt Formation
    The Nemegt Formation is a geological formation dating from the Late Cretaceous sedimentary from the Gobi Desert of Mongolia. It overlies and sometimes forms folds with the Barun Goyot Formation. It consists of river channel sediments and contains fossils of fish, turtles, crocodilians, birds and a...


     Mongolia

    Pterosaurs

    • Lü, J. 2009. A new non-pterodactyloid pterosaur from Qinglong County, Hebei Province of China. Acta Geologica Sinica (English Edition) 83(2):189-199. doi: 10.1111/j.1755-6724.2009.00062.x.
    • Vullo, R., and Neraudeau, D., 2009, Pterosaur remains from the Cenomanian (Late Cretaceous) Paralic Deposits of Charentes, Western France: Journal of Vertebrate Paleontology, v. 29, n. 1, p. 277-282.

    Newly named pterosaurs
    Name Status Authors Age Unit Location Notes Images

    Carniadactylus
    Carniadactylus
    Carniadactylus is a genus of pterosaur which existed in Europe during the Late Triassic period. The genus contains a single species, Carniadactylus rosenfeldi.-Description:...


    Valid
    • Dalla Vecchia

    Late Triassic

     Italy

    A campylognathoidid with a wingspan of about 70 cm.


    Changchengopterus
    Changchengopterus
    Changchengopterus is a genus of non-pterodactyloid pterosaur from China . The fossil specimen of the type and only species, Changchengopterus pani, was found in the Tiaojishan Formation and described by Lü in 2009...


    Valid

    Middle Jurassic

    Tiaojishan Formation
    Tiaojishan Formation
    The Tiaojishan Formation is a geological formation in Hebei and Liaoning, People's Republic of China, dating to the middle-late Jurassic period . It is known for its fossil plants, and is made up mainly of pyroclastic rock interspersed with basic volcanic and sedimentary rocks...


     Mainland China

    A primitive long-tailed pterosaur related to Dorygnathus
    Dorygnathus
    Dorygnathus was a genus of pterosaur that lived in Europe during the Early Jurassic period, 180 million years ago when shallow seas flooded much of the continent. It had a short 1.5 meter wingspan, and a relatively small triangular sternum, which is where its flight muscles attached. Its skull...

    .

    Ningchengopterus
    Ningchengopterus
    Ningchengopterus is a genus of pterodactyloid pterosaur from the Early Cretaceous-age Yixian Formation of China. It is known from a juvenile specimen, holotype CYGB-0035, an almost complete skeleton also showing soft parts, such as the flight membrane and some fur. The type species is N. liuae...


    Valid

    Early Cretaceous

    Yixian Formation
    Yixian Formation
    The Yixian Formation is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans 11 million years during the early Cretaceous period...


     Mainland China

    A pterodactyloid known from a juvenile specimen whose fossils preserved details of the flight membrane and fur.

    Wukongopterus
    Wukongopterus
    Wukongopterus is a genus of basal pterosaur, found in Liaoning, China, from the Daohugou Beds, of the Late Jurassic or Early Cretaceous. It was unusual for having both an elongate neck and a long tail....


    Valid
    • Wang
    • Kellner
    • Jiang
    • Meng

    Late Jurassic

    Daohugou Beds
    Daohugou Beds
    The Daohugou Beds are a series of fossil-bearing rock deposits located in northeastern China, with the type locality around Daohugou village of Ningcheng County south of Chifeng, Inner Mongolia, but extending into southwest Liaoning. The rocks are grey, finely bedded, lacustrine, sandy mudstones...


     Mainland China

    A primitive long tailed pterosaur. The type specimen shows evidence of the animal having broken its shin while alive.

    Basal lepidosauromorphs

    Newly named basal lepidosauromorphs
    Name Status Authors Age Unit Location Notes Images

    Pamelina
    Pamelina
    Pamelina is an extinct genus of basal kuehneosaurid known from Early Triassic rocks of Czatkowice 1, Poland. It was first named by Susan E. Evans in 2009 and the type species is Pamelina polonica. It is the oldest known member of Kuehneosauridae.- Phylogeny :Cladogram after Evans ....


    Valid
    • Evans
      Susan E. Evans
      Susan E. Evans is British paleontologist and herpetologist. She is the author or co-author of over 100 peer-reviewed papers and book chapters....


    Early Olenekian

    Czatkowice 1

     Poland

    A basal kuehneosaurid
    Kuehneosauridae
    The kuehneosaurids were a group of small, lizard-like diapsids including Icarosaurus and Kuehneosaurus. They were distinguished from other diapsids by their 'wings', which were really sails of skin held up by bony struts similar to ribs. These sails would have served as gliding tools, but the...


    Sophineta
    Sophineta
    Sophineta is an extinct genus of basal lepidosauromorph known from Early Triassic rocks of Czatkowice 1, Poland. It was first named by Susan E. Evans and Magdalena Borsuk−Białynicka in 2009 and the type species is Sophineta cracoviensis....


    Valid
    • Evans
      Susan E. Evans
      Susan E. Evans is British paleontologist and herpetologist. She is the author or co-author of over 100 peer-reviewed papers and book chapters....

    • Borsuk−Białynicka

    earliest Late Olenekian

    Czatkowice 1

     Poland

    A basal lepidosauromorph
    Lepidosauromorpha
    Lepidosauromorpha is a group of reptiles comprising all diapsids closer to lizards than to archosaurs . The only living sub-group is the Lepidosauria: extant lizards, snakes, and tuatara...


    Plesiosaurs

    • In 2009, in Svalbard, Norway a new pliosaur was found by Jorn Hurum. It currently is codenamed as "Predator X
      Predator X
      Predator X is a comic book character, in Marvel Comics' main shared universe. The character is an adversary of Marvel's mutant characters, including the X-Men.-History:...

      ."

    • O'Keefe, F. R., and Street, H. P., 2009. Osteology of the cryptocleidoid plesiosaur Tatenectes laramiensis, with comments on the taxonomic status of the Cimoliasauridae: Journal of Vertebrate Paleontology 29(1):48–57.

    Newly named plesiosaurs
    Name Status Authors Age Unit Location Notes Images

    Gallardosaurus
    Gallardosaurus
    Gallardosaurus is a genus of pliosaurid plesiosaur from the Caribbean seaway. It contains the single species Gallardosaurus iturraldei. Gallardosaurus was found in middle-late Oxfordian-age rocks of the Jagua Formation of western Cuba...


    Valid
    • Gasparini

    Late Jurassic (Oxfordian)

    Jagua Formation
    Jagua Formation
    The Jagua Formation is a Late Jurassic geologic formation in Pinar del Rio Province, western Cuba. Plesiosaur, pliosaur, pterosaur, metriorhynchid, and turtle remains are among the fossils that have been recovered from its strata....


     Cuba


    Nichollssaura

    Valid
    • Druckenmiller
    • Russell

    Early Cretaceous (Albian)

    Clearwater Formation
    Clearwater Formation
    The Clearwater Formation is a stratigraphical unit of Albian age in the Western Canadian Sedimentary Basin.It takes the name from Clearweater River. The formation is exposed on the banks of the Athabasca River between Brule Falls and Boiler Falls, as well as along the Christina River, a tributary...


     Canada

    Replacement name for Nichollsia Druckenmiller & Russell, 2008, preoccupied by a isopod genus Nichollsia Chopra & Tiwari, 1950

    Squamates

    Newly named squamates
    Name Status Authors Notes Images
    Titanoboa
    Titanoboa
    Titanoboa, , meaning "titanic boa," is a genus of snake that lived approximately 58 to 60 million years ago, in the Paleocene epoch, a 10-million-year period immediately following the dinosaur extinction event...

    Valid
    • Head
    • Bloch
    • Hastings
    • Bourque
  • Cadena
  • Herrera
  • Polly
  • Jaramillo

  • In February, the fossil
    Fossil
    Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...

    s of 28 individual T. cerrejonensis (Titanoboa
    Titanoboa
    Titanoboa, , meaning "titanic boa," is a genus of snake that lived approximately 58 to 60 million years ago, in the Paleocene epoch, a 10-million-year period immediately following the dinosaur extinction event...

    s) were announced to have been found in the coal mines
    Coal mining
    The goal of coal mining is to obtain coal from the ground. Coal is valued for its energy content, and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United States,...

     of Cerrejón
    Cerrejón
    Cerrejón is a coal mine located in the Guajira department in the north of Colombia. It is the largest mining operation in Colombia and among the largest open-pit coal mines in the world. The legal entity managing the Cerrejón operation is known as Carbones del Cerrejón Ltd...

    , La Guajira
    Department of La Guajira
    La Guajira is a department of Colombia. It occupies most of its namesake peninsula, the Guajira Peninsula in the northeast region of the country, facing the Caribbean Sea and Venezuela in the northern most part of South America...

    , Colombia
    Colombia
    Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...

    .


    Non-mammalian

    Name Status Authors Age Unit Location Notes Images

    Protuberum
    Protuberum
    Protuberum is a genus of traversodontid cynodont known from a single species Protuberum cabralensis, from the Middle Triassic of Brazil....


    Valid
    • Reichel
    • Schultz
    • Soares

    Middle Triassic (Ladinian)

    Santa Maria Formation
    Santa Maria Formation
    The Santa Maria Formation is a sedimentary rock formation found in Rio Grande do Sul, Brazil. It has a late Ladinian – early Carnian age , and is notable for its fossils of early dinosaurs, including the herrerasaur Staurikosaurus, the basal saurischian Teyuwasu, and the basal sauropodomorph...


     Brazil


    Raranimus
    Raranimus
    Raranimus is an extinct genus of therapsid of the Middle Permian. It was described in 2009 from a partial skull found in 1998 from the Dashankou locality of the Xidagou Formation, outcropping in the Qilian Mountains of Gansu, China...


    Valid
    • Liu
    • Rubidge
    • Li

    Middle Permian (Roadian)

    Xidagou Formation
    Xidagou formation
    -Therapsida:-Reptilia:...


     Mainland China

    Yuanotherium
    Yuanotherium
    Yuanotherium minor is an extinct species of synapsid which existed in China during the late Jurassic period. It is the only species in the genus Yuanotherium....


    Valid
    • Hu
    • Meng
    • Clark

    Late Jurassic (Oxfordian)

    Shishugou Formation
    Shishugou Formation
    The Shishugou Formation is a geological formation in Xinjiang, China, whose strata date back to the Late Jurassic period. Dinosaur remains are among the fossils that have been recovered from the formation....


     Mainland China

    Mammals

    • A study by J. R. Foster is published estimating the body masses of mammals from the Late Jurassic Morrison Formation
      Morrison Formation
      The Morrison Formation is a distinctive sequence of Late Jurassic sedimentary rock that is found in the western United States, which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone and limestone and is light grey, greenish...

       by using
      Regression analysis
      In statistics, regression analysis includes many techniques for modeling and analyzing several variables, when the focus is on the relationship between a dependent variable and one or more independent variables...

       the ratio of dentary length to body mass of modern marsupials as a reference. Foster concludes that Docodon
      Docodon
      Docodon was an omnivorous mammal from the middle to upper Jurassic Period that lived in Europe and North America approximately 175.6 to 144 million years ago. Docodon likely inhabited woodland and stayed in trees out of the reach of predators...

       was the most massive mammal genus of the formation at 141g and Fruitafossor
      Fruitafossor
      Fruitafossor was a termite-eating mammal endemic to North America during the Late Jurassic epoch , existing for approximately ....

       was the least massive at 6g. The average Morrison mammal had a mass of 48.5g. A graph of the body mass distribution of Morrison mammal genera produced a right-skewed curve, meaning that there were more low-mass genera.

    • Fujiwara, S.-I. 2009. Olecranon orientation as an indicator of elbow joint angle in the stance phase, and estimation of forelimb posture in extinct quadruped animals. Journal of Morphology. doi: 10.1002/jmor.10748.

    • Fujiwara, S.-I., Kuwazuru, O., Inuzuka, N., and Yochikawa, N. 2009. Relationship between scapular position and structural strength of rib cage in quadruped animals. Journal of Morphology. doi: 10.1002/jmor.10744.

    • Mitchell, G., van Sittert, S.J., and Skinner, J.D. 2009. Sexual selection is not the origin of long necks in giraffes. Journal of Zoology. doi: 10.1111/j.1469-7998.2009.00573.x.

    Newly named mammals
    Name Status Authors Age Unit Location Notes Images

    Anoiapithecus
    Anoiapithecus
    Anoiapithecus is an extinct genus of ape thought to be closely related to Dryopithecus. Both genera lived during the Miocene, approximately 12 million years ago...


    Valid
    • Moyà-Solà
    • Alba
    • et al.

    Middle Miocene

     Spain


    Arcantiodelphys
    Arcantiodelphys
    Arcantiodelphys is an extinct genus of basal Metatheria which existed in France during the Cenomanian age. It was first named by Romain Vullo, Emmanuel Gheerbrant, Christian de Muizon and Didier Néraudeau in 2009 and the type species is Arcantiodelphys marchandi.- Phylogeny :Cladogram after Vullo...


    Valid
    • Vullo
    • Gheerbrant
    • et al.

    Cenomanian

     Early Modern France

    Corriebaatar
    Corriebaatar
    Corriebaatar is the type and only genus of Corriebaataridae, a family of multituberculate mammals. It contains the single species Corriebaatar marywaltersae and represents the first evidence of Australian multituberculates Fossils date back to the Aptian stage of the Early Cretaceous....


    Valid
    • Rich
    • Vickers-Rich
    • et al.

    Aptian

    Wonthaggi Formation
    Wonthaggi Formation
    The Wonthaggi Formation is a geological formation in Victoria, Australia whose strata date back to the Early Cretaceous. It is part of the Strzelecki Group. Dinosaur remains are among the fossils that have been recovered from the formation....


     Australia

    First Australian multituberculate.

    Darwinius
    Darwinius
    Darwinius is a genus of Adapiformes, a group of basal primates from the Eocene epoch. Its only known species is Darwinius masillae, dated to 47 million years ago based on dating of the fossil site....


    Valid
    • Franzen
    • Gingerich
    • et al.

    early Geiseltalian

    Messel Formation

     Germany

    Duerotherium
    Duerotherium
    Duerotherium is an extinct genus of anoplotheriine artiodactyl which existed in Iberian Peninsula during the middle Eocene. It was first named by Miguel-Ángel Cuesta and Ainara Badiola in 2009 and the type species is Duerotherium sudrei....


    Valid
    • Cuesta
    • Badiola

    Middle Eocene

    An anoplotheriine artiodactyl

    Eritherium
    Eritherium
    Eritherium is an extinct genus of early Proboscidea found in Ouled Abdoun basin , Morocco. It was first named by Emmanuel Gheerbrant in 2009 and the type species is Eritherium azzouzorum. Eritherium is the oldest, smallest and most primitive known elephant relative....


    Valid
    • Gheerbrant

    Early Thanetian

    Ouled Abdoun basin

     Morocco

    The oldest, smallest and most primitive elephant relative.

    Ganlea
    Ganlea
    Ganlea is a fossil primate from central Myanmar, formerly known as Burma. Its age is about 38 million years, living during the late Eocene epoch. Ganlea belongs to the group of anthropoids , and is in the family Amphipithecidae. It is older than any other known anthropoid from Africa, and is the...


    Valid
    • Beard
    • Marivaux
    • et al.

    late Middle Eocene

    Pondaung Formation

     Myanmar

    Kahawamys
    Kahawamys
    Kahawamys is an extinct genus of thryonomyoid rodent which existed in Nsungwe Formation, Tanzania during the late Oligocene. It was first named by Nancy J. Stevens, Patricia A. Holroyd, Eric M. Roberts, Patrick M. O'connor and Michael D. Gottfried in 2009 and the type species is Kahawamys mbeyaensis....


    Valid
    • Stevens
    • Holroyd
    • et al.

    Late Oligocene

    Nsungwe Formation

     Tanzania

    A thryonomyoid rodent

    Maiacetus
    Maiacetus
    Maiacetus is a genus of early middle Eocene cetacean from Pakistan.-Paleobiology:The genus contains a single species Maiacetus inuus, first described in 2009 on the basis of two specimens, including a specimen which has been interpreted as a pregnant female and its fetus...


    Valid
    • Gingerich
    • ul-Haq
    • et al.

    early Middle Eocene

    Habib Rahi Formation

     Pakistan

    Meiconodon
    Meiconodon
    Meiconodon is an extinct genus of alticonodontine triconodontid which existed in China during the early Cretaceous period . It was described by Nao Kusuhashi, Yaoming Hu, Yuanqing Wang, Satoshi Hirasawa and Hiroshige Matsuoka in 2009 and the type species is Meiconodon lii....


    Valid
    • Kusuhashi
    • Hu
    • et al.

    Aptian/Albian

    Fuxin Formation 

    Shahai Formation

     Mainland China

    A alticonodontine triconodontid
    Triconodontidae
    Triconodontidae is an extinct family of actively mobile mammal, endemic to what would be North America, Europe, and Africa during the Jurassic through Cretaceous periods from 155.7—70.6 mya, existing for approximately .-Taxonomy:...


    Nalameryx
    Nalameryx
    Nalameryx is an extinct genus of lophiomerycid ruminant which existed in lower Chitarwata Formation, Pakistan during the middle Oligocene. It was first named by Grégoire Métais, Jean-Loup Welcomme and Stéphane Ducrocq in 2009 and the type species is Nalameryx savagei....


    Valid
    • Métais
    • Welcomme
    • Ducrocq

    Middle Oligocene

    Chitarwata Formation
    Chitarwata Formation
    The Chitarwata Formation is a geological formation in western Pakistan, made up of Oligocene and early Miocene terrestrial facies. It is dominated by coastal paleoenvironments ....


     Pakistan

    A lophiomerycid ruminant
    Ruminantia
    Ruminantia includes many of the well-known large grazing or browsing mammals: among them cattle, goats, sheep, deer, and antelope. All members of the Ruminantia are ruminants: they digest food in two steps, chewing and swallowing in the normal way to begin with, and then regurgitating the...


    Puijila
    Puijila
    Puijila darwini is an extinct species of pinniped which lived during the Miocene epoch about 21 to 24 million years ago. Approximately a metre in length, the animal possessed only minimal physical adaptations for swimming...


    Valid
    • Rybczynski
    • Dawson
    • Tedford

    Early Miocene

     Canada

    Extinct genus of pinniped.

    Evolutionary biology

    • A study is published that proposes that females from certain taxa use ornaments as a criterion for mate choice because other dimorphic structures, like biological "weaponry" could be used to coerce or force them to mate.
    • A study concludes that biotic factors have more pronounced local and short term evolutionary impacts than abiotic factors, which in turn have a more pronounced effect through time and on biodiversity as a whole.

    Extinction

    A study noting the effects of the KT mass extinction on Earth's modern biota is published.

    Ichnology

    • Bedatou, E., Melchor, R.N., and Genise, J.F. 2009. Complex palaeosol ichnofabrics from Late Jurassic-Early Cretaceous volcaniclastic successions of central Patagonia, Argentina. Sedimentary Geology.

    Paleobiogeography

    • Pereda-Suberbiola, X. 2009. Biogeographical affinities of Late Cretaceous

    continental tetrapods of Europe: a review. Bulletin de la Société Géologique de France 180(1):57-71. .

    Paleoecology

    • Nicolas, M., and Rubidge, B.S. 2009. Changes in Permo-Triassic terrestrial tetrapod ecological representation in the Beaufort Group (Karoo Supergroup) of South Africa. Lethaia. doi: 10.1111/j.1502-3931.2009.00171.x.

    Complete author list

    As science becomes more collaborative, papers with large numbers of authors are becoming more common. To prevent the deformation of the tables, these footnotes list the contributors to papers that erect new genera and have many authors.
    The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
     
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