Dinosaurs

• Stokes
  Stokes
  -Science:* Stokes , a measure of viscosity*Stokes flow*Stokes law*Stokes' law *Stokes parameters*Stokes radius*Stokes relations*Stokes shift*Stokes' theorem*Navier-Stokes equations-Places:* Stokes...
  
   suggested that sauropods recycled their gastrolith
  Gastrolith
  A gastrolith, also called a stomach stone or gizzard stones, is a rock held inside a gastrointestinal tract. Gastroliths are retained in the muscular gizzard and used to grind food in animals lacking suitable grinding teeth. The grain size depends upon the size of the animal and the gastrolith's...
  
  s and chose them based on bright color.

Newly named dinosaurs

Name	Novelty	Status	Authors	Age	Unit	Location	Notes	Images
Aeolosaurus Aeolosaurus Aeolosaurus is a genus of titanosaurian sauropod dinosaur from the Late Cretaceous Period of what is now South America. Like most sauropods, it would have been a quadrupedal herbivore with a long neck and tail...	gen et sp nov	Valid taxon	Powell	Late Cretaceous 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...	Angostura Colorada Formation Angostura Colorada Formation The Angostura Colorada Formation is a Mesozoic geologic formation. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.-See also:* List of dinosaur-bearing rock formations...	Argentina	A titanosaurian
Aragosaurus Aragosaurus Aragosaurus was a genus of sauropod dinosaur from the Early Cretaceous period of Galve, province of Teruel, in the autonomous territory of Aragón, Spain....	Gen et sp nov	Valid taxon	Sanz, Buscalioni, Casanovas-Cladellas, & Santafé	Hauterivian Hauterivian The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous epoch or a stage in the Lower Cretaceous series. It spans the time between 136.4 ± 2 Ma and 130 ± 1.5 Ma... -Barremian Barremian The Barremian is an age in the geologic timescale between 130.0 ± 1.5 Ma and 125.0 ± 1.0 Ma). It is a subdivision of the Early Cretaceous epoch...		Spain
Borogovia Borogovia Borogovia was a theropod dinosaur genus which lived during the Late Cretaceous Period, in what is now Mongolia. The agile carnivorous troodontid takes its name from creatures known as 'borogoves' in the Lewis Carroll poem, Jabberwocky....	gen et sp nov	Valid taxon	Osmólska Halszka Osmólska Halszka Osmólska was a Polish paleontologist who had specialized in Mongolian dinosaurs.She was born in Poznań. A member of the 1965 and 1970 Polish–Mongolian expeditions to the Gobi Desert, she described many finds from these rocks, often with Teresa Maryańska...	Late Cretaceous 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...		Mongolia
"Clevelanotyrannus"	gen et sp nov	Nomen nudum Nomen nudum The phrase nomen nudum is a Latin term, meaning "naked name", used in taxonomy...	Bakker, Williams & Currie vide: Currie	Late Cretaceous 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...	Lance Formation Lance Formation The Lance Formation is a division of Late Cretaceous rocks in the western United States. Named after Lance Creek, Wyoming, the microvertebrate fossils and dinosaurs represent important components of the latest Mesozoic vertebrate faunas...	United States	determined to be a junior synonym of Nanotyrannus Nanotyrannus Nanotyrannus is a genus of tyrannosaurid dinosaur, known only from two juvenile specimens, which may in fact represent juvenile specimens of the contemporary species Tyrannosaurus rex.-History:...
"Jiangjunmiaosaurus"	nomen nudum	Anonymous Anonymity Anonymity is derived from the Greek word ἀνωνυμία, anonymia, meaning "without a name" or "namelessness". In colloquial use, anonymity typically refers to the state of an individual's personal identity, or personally identifiable information, being publicly unknown.There are many reasons why a...	Middle Jurassic Middle Jurassic The Middle Jurassic is the second epoch of the Jurassic Period. It lasted from 176-161 million years ago. In European lithostratigraphy, rocks of this Middle Jurassic age are called the Dogger....	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		Junior synonym of Monolophosaurus Monolophosaurus Monolophosaurus was a genus of theropod dinosaur from the Middle Jurassic of the Shishugou Formation in what is now Xinjiang, China. It was named for the single crest on top of its skull. The type and only known individual is estimated at...
Maleevus Maleevus Maleevus is a genus of ankylosaurid dinosaur that is known only from the jawbone and part of the skull discovered in 1952 by Soviet palaeontologist Evgenii Aleksandrovich Maleev. It has been estimated that Maleevus was about 6 meters long...	gen et sp nov	Valid taxon	Tumanova	Late Cretaceous 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...		Mongolia
Pseudolagosuchus Pseudolagosuchus Pseudolagosuchus is a genus of dinosauromorph from the Middle Triassic Chañares Formation of Argentina. It may be a junior synonym of Lewisuchus, but there is very little overlapping material...	Gen et sp nov	Valid taxon	Arcucci	Ladinian Ladinian The Ladinian is a stage and age in the Middle Triassic series or epoch. It spans the time between 237 ± 2 Ma and 228 ± 2 Ma...  (Middle Triassic)	Chañares Formation Chañares Formation The Chañares Formation in La Rioja Provence, Argentina, dates to the Anisian stage of the early Middle Triassic.Some localities are well known for their abundance of tetrapods. Theraspids include the kannemeyeriid Dinodontosaurus, and cynodonts such as Probainognathus and Massetognathus, the latter...	Argentina	possibly a jr synonym of Lewisuchus Lewisuchus Lewisuchus is a genus of archosaur that lived during the Middle Triassic ; it was a silesaurid dinosauriform, a member of the group of reptiles which lead to the dinosaurs. Lewisuchus was about three feet long. Fossils have been found in Argentina...
Ugrosaurus	gen et sp nov	Junior synonym	Cobabe & David Fastovsky	Late Cretaceous 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...	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	Junior synonym of Triceratops Triceratops Triceratops is a genus of herbivorous ceratopsid dinosaur which lived during the late Maastrichtian stage of the Late Cretaceous Period, around 68 to 65 million years ago in what is now North America. It was one of the last dinosaur genera to appear before the great Cretaceous–Paleogene...
"Unicerosaurus Unicerosaurus "Unicerosaurus" is a nomen nudum coined by creation scientist Carl Baugh. It has never been formally described. Baugh had claimed that "Unicerosaurus" was a dinosaur, but this was rejected by Canadian geologist John R. Armstrong in a 1987 article, which identified the fossil as the neural spine of... "		Nomen nudum Nomen nudum The phrase nomen nudum is a Latin term, meaning "naked name", used in taxonomy...	Baugh Carl Baugh Carl Edward Baugh is an American young earth creationist. Along with others, Baugh has said he discovered human alongside dinosaur footprints near the Paluxy River in Texas. Baugh is a national television host, purporting to present science supporting creationism on the program Creation in the...  vide: Armstrong		Glen Rose, Texas Glen Rose, Texas Glen Rose is a city in Somervell County, Texas, United States. It is the county seat of Somervell County. As of the 2010 census, the city population was 2,444. Glen Rose is part of the Granbury micropolitan area.-19th century:... ?	United States	Possibly a Fish Fish Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...  neural spine, never formally described
Walkeria	gen et sp nov	name preoccupied	Chatterjee Sankar Chatterjee Sankar Chatterjee is a paleontologist, and is the Paul W. Horn Professor of Geosciences at Texas Tech University and Curator of Paleontology at the Museum of Texas Tech University. He earned his Ph. D. from the University of Calcutta in 1970 and was a Post-doctoral Fellow at the Smithsonian...	Late Triassic Late Triassic The Late Triassic is in the geologic timescale the third and final of three epochs of the Triassic period. The corresponding series is known as the Upper Triassic. In the past it was sometimes called the Keuper, after a German lithostratigraphic group that has a roughly corresponding age...	Maleri Formation	India	Name preoccupied by a bryozoan. Renamed Alwalkeria Alwalkeria Alwalkeria is a genus of basal saurischian dinosaur from the Late Triassic of India. It was a small bipedal omnivore.This dinosaur was originally named Walkeria maleriensis by Sankar Chatterjee in 1987, in honor of famous British paleontologist Alick Walker and the Maleri Formation, in which its... in 1994 1994 in paleontology -Dinosaurs:* Aff. Rebbachisaurus gastroliths documented.* The "Talkeetna Mountains Hadrosaur" specimen was discovered in a quarry being excavated for road material. The quarry is near the Glenn Highway, approximately 150 miles northeast of Anchorage... .

New taxa

Angiosperms

Name	Novelty	Status	Authors	Age	Unit	Location	Notes	Images
Acer alaskense Acer alaskense Acer alaskense is an extinct maple species in the family Sapindaceae described from a fossil leaf. The species is solely known from the Latest Paleocene sediments exposed in the Matanuska River Valley, Matanuska-Susitna Borough, Alaska...	Sect and sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Tanai	Latest Paleocene	Chickaloon Formation	United States	Oldest occurrence of Acer in Alaska, type and only species of the section Alaskana
Acer douglasense Acer douglasense Acer douglasense is an extinct maple species in the family Sapindaceae described from fossil leaves. The species is solely known from the Early Eocene sediments exposed in Katmai National Park and Preserve, Kodiak Island Borough, Alaska...	sect and sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Tanai	early Eocene	West Foreland Formation	United States	Second oldest occurrence of Acer in Alaska; only species of the section Douglasa
Acer hillsi Acer hillsi Acer hillsi is an extinct maple species in the family Sapindaceae described from a single fossil samara. The species is solely known from the Early Eocene sediments exposed in south central British Columbia, Canada adjacent to northeast Washington State, USA...	sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Tanai	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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	one of two species in the extinct section Stewarta
Acer rousei Acer rousei Acer rousei is an extinct maple species in the family Sapindaceae described from a series of isolated fossil samaras. The species is solely known from the Early Eocene sediments exposed in south central British Columbia, Canada adjacent to northeast Washington State, USA...	sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Tanai	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	Allenby formation & McAbee Site	Canada	only species in the extinct section Rousea
Acer stewarti Acer stewarti Acer stewarti is an extinct maple species in the family Sapindaceae described from a series of fossil leaves and samaras. The species is solely known from the Early Eocene sediments exposed in south central British Columbia, Canada adjacent to northeast Washington State, USA...	sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Tanai	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	Allenby formation	Canada	one of two species in the extinct section Stewarta
Acer stonebergae Acer stonebergae Acer stonebergae is an extinct maple species in the family Sapindaceae described from two fossil samaras. The species is solely known from the Early Eocene sediments exposed in northeast Washington State, USA and the adjacent area of south central British Columbia, Canada...	sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Tanai	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	Allenby and 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... s	Canada  United States	one of three species in the extinct section Torada
Acer toradense Acer toradense Acer toradense is an extinct maple species in the family Sapindaceae described from two fossil samaras. The species is solely known from the Early Eocene sediments exposed in northeast Washington State, USA and the adjacent area of south central British Columbia, Canada...	sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Tanai	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	Allenby and 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... s	Canada  United States	one of three species in the extinct section Torada
Acer washingtonense Acer washingtonense Acer washingtonense is an extinct maple species in the family Sapindaceae described from one fossil leaf and four fossil samaras. The species is solely known from the Early Eocene sediments exposed in northeast Washington State, USA...	Sect and sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Tanai	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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	type species in the extinct section Torada
Barghoornia	gen et sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Wehr Wesley C. Wehr Wesley Conrad Wehr was an American paleontologist and artist best known for his studies of Tertiary fossil floras in western North America, the Stonerose Interpretive Center, and as a part of the Northwest School of art.-Early life:...	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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	Monotypic with the species Barghoornia oblongifolia
Betula leopoldae	sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Wehr Wesley C. Wehr Wesley Conrad Wehr was an American paleontologist and artist best known for his studies of Tertiary fossil floras in western North America, the Stonerose Interpretive Center, and as a part of the Northwest School of art.-Early life:...	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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
Bohlenia	gen et sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Wehr Wesley C. Wehr Wesley Conrad Wehr was an American paleontologist and artist best known for his studies of Tertiary fossil floras in western North America, the Stonerose Interpretive Center, and as a part of the Northwest School of art.-Early life:...	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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
Carya washingtonensis Carya washingtonensis Carya washingtonensis is an extinct species of hickory nut in the walnut family Juglandaceae. The species is solely known from the Miocene sediments exposed in Kittitas County near Ellensburg, Washington.-Type locality:...	sp nov	Valid	Manchester	Langhian Langhian The Langhian is, in the ICS geologic timescale, an age or stage in the middle Miocene epoch/series. It spans the time between 15.97 ± 0.05 Ma and 13.65 ± 0.05 Ma . The Langhian was a continuing warming period defined by Lorenzo Pareto in 1864, it was originally established in the Langhe area north...	Badger Pocket-Squaw Creek, Wanapum Basalts	United States	described from one of the oldest rodent nut caches known
Langeria	gen et sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Wehr Wesley C. Wehr Wesley Conrad Wehr was an American paleontologist and artist best known for his studies of Tertiary fossil floras in western North America, the Stonerose Interpretive Center, and as a part of the Northwest School of art.-Early life:...	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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	Monotypic with the species Langeria magnifica
Macginitiea	gen et sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Wehr Wesley C. Wehr Wesley Conrad Wehr was an American paleontologist and artist best known for his studies of Tertiary fossil floras in western North America, the Stonerose Interpretive Center, and as a part of the Northwest School of art.-Early life:...	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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
Photinia pageae	sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Wehr Wesley C. Wehr Wesley Conrad Wehr was an American paleontologist and artist best known for his studies of Tertiary fossil floras in western North America, the Stonerose Interpretive Center, and as a part of the Northwest School of art.-Early life:...	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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
Republica	gen et sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Wehr Wesley C. Wehr Wesley Conrad Wehr was an American paleontologist and artist best known for his studies of Tertiary fossil floras in western North America, the Stonerose Interpretive Center, and as a part of the Northwest School of art.-Early life:...	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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	Incertae sedis angeospermae
Rhus malloryi	sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Wehr Wesley C. Wehr Wesley Conrad Wehr was an American paleontologist and artist best known for his studies of Tertiary fossil floras in western North America, the Stonerose Interpretive Center, and as a part of the Northwest School of art.-Early life:...	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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
Schoepfia republicensis	sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Wehr Wesley C. Wehr Wesley Conrad Wehr was an American paleontologist and artist best known for his studies of Tertiary fossil floras in western North America, the Stonerose Interpretive Center, and as a part of the Northwest School of art.-Early life:...	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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
Tilia johnsoni Tilia johnsoni Tilia johnsoni is an extinct species of linden tree that was native to Washington state, USA and British Columbia, Canada. This species lived around 49 million years ago during the Early Eocene. The species was named in honor of Dr. Kirk R. Johnson, paleobotanist who assisted with collecting from...	sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Wehr Wesley C. Wehr Wesley Conrad Wehr was an American paleontologist and artist best known for his studies of Tertiary fossil floras in western North America, the Stonerose Interpretive Center, and as a part of the Northwest School of art.-Early life:...	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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
Tsukada	gen et sp nov	Valid	Wolfe Jack A. Wolfe Jack Albert Wolfe was an American paleontologist best known for his studies of Tertiary climate in western North America through analysis of fossil angiosperm leaves.-External links:...  & Wehr Wesley C. Wehr Wesley Conrad Wehr was an American paleontologist and artist best known for his studies of Tertiary fossil floras in western North America, the Stonerose Interpretive Center, and as a part of the Northwest School of art.-Early life:...	Ypresian Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between and , is preceded by the Thanetian age and is followed by the Eocene Lutetian age....	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	Monotypic with the species Tsukada davidiifolia