The Triassic is a geologic period that extends from about 251 to 199 annum . As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic.... geological period. It dates from 216.5 ± 2.0 to 203.6 ± 1.5 million years ago
Mya (unit)
In astronomy, geology, and paleontology, mya or "m.y.a." is an abbreviation for "million years ago". Like the related unit bya, mya is traditionally written in lower case.... . It was preceded by the Carnian
Carnian
The Carnian is the lowermost stage of the Upper Triassic series . Its boundaries are not characterized by major extinctions or biotic turnovers, but a climatic event occurred during the Carnian and seems to be associated with important extinctions or biotic radiations.... Stage and succeeded by the Rhaetian
Rhaetian
PaleogeographyAt this stage, Pangaea began to break-up, though the Atlantic Ocean was not yet formed.... Stage.
The Triassic is a geologic period that extends from about 251 to 199 annum . As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic.... geological period. It dates from 216.5 ± 2.0 to 203.6 ± 1.5 million years ago
Mya (unit)
In astronomy, geology, and paleontology, mya or "m.y.a." is an abbreviation for "million years ago". Like the related unit bya, mya is traditionally written in lower case.... . It was preceded by the Carnian
Carnian
The Carnian is the lowermost stage of the Upper Triassic series . Its boundaries are not characterized by major extinctions or biotic turnovers, but a climatic event occurred during the Carnian and seems to be associated with important extinctions or biotic radiations.... Stage and succeeded by the Rhaetian
Rhaetian
PaleogeographyAt this stage, Pangaea began to break-up, though the Atlantic Ocean was not yet formed.... Stage.
File:Aetosaur, PFNP.jpgThe aetosaurs are an extinct clade of heavily armoured, medium- to large-sized Late Triassic herbivore archosaurs. Two distinct subdivisions of aeotosaurs are currently recognized, the Desmatosuchinae and the Aetosaurinae, based primarily on differences in the morphology of the bony scutes of the two groups .... s
Phytosaurs - family Phytosauridae or Parasuchidae - were a group of large semi-aquatic predatory archosaurs that flourished during the Late Triassic Geologic period.... s
Dinosaurs were the dominant vertebrate animals of Landform ecosystems for over 160 million years, from the late Triassic Period until the end of the Cretaceous Period , when most of them became extinct in the Cretaceous?Tertiary extinction event.... of the Norian
Agnosphitys is a disputed genus of dinosaur. It contains only one species, the type species A. cromhallensis. Its remains include an ilium , maxilla, talus bone and humerus, which date variously from the Norian and Rhaetian stages of the Late Triassic....
Coelophysis , meaning "hollow body form" in reference to its hollow bones , is one of the earliest known genus of dinosaur. It was a small, carnivore biped from North America....
The Carnian is the lowermost stage of the Upper Triassic series . Its boundaries are not characterized by major extinctions or biotic turnovers, but a climatic event occurred during the Carnian and seems to be associated with important extinctions or biotic radiations.... to early Norian
The Ghost Ranch is a retreat and education center run by the Presbyterian Church , located close to the village of Abiquiu in Rio Arriba County, New Mexico.... , New Mexico, USA
Halticosaurus is a genus of theropod dinosaur from the Late Triassic period . It was a coelophysoid found in what is present-day Germany. Some researchers consider Halticosaurus the same genus as Liliensternus, but Samuel Welles found differences in the femoral head and the anterior trochanter....
Liliensternus was a genus of coelophysoid dinosaur from the Late Triassic period, between about 215-200 mya. Liliensternus was originally found in 1934 in Germany and was named after the Germany scientist, Dr....
Plateosaurus is a genus of Plateosauridae prosauropoda dinosaur that lived during the Norian and Rhaetian stages of the Late Triassic Period , around 216 to 199 annum in what is now Europe....
Sellosaurus is a genus of prosauropod dinosaur that lived in Triassic Europe, 225 mya. It was about 23 feet long, 7 feet tall and weighed 2,000 pounds ....
Thecodontosaurus is a genus of herbivore dinosaur which lived during the late Triassic Period . Its remains are known mostly from Triassic "fissure fillings" in South England and Wales....
Pterosaurs were flying reptiles of the clade or Order Pterosauria. They existed from the late Triassic to the end of the Cretaceous Period . Pterosaurs are the earliest vertebrates known to have evolved powered flight.... s of the Norian
Peteinosaurus was a prehistoric reptile genus belonging to the Pterosauria. It existed in the late Triassic period in the middle Norian . The species name, zambellii, honours Rocco Zambelli, the curator of the Bergamo natural history museum....
Preondactylus is a genus of long-tailed pterosaur from the Late Triassic that inhabited what is now Italy. It was discovered by Nando Buffarini in 1982 near Udine in the Preone valley of the Italian Alps....
The Crocodylomorpha are an important group of archosaurs that include the crocodilians and their extinct relatives.During Mesozoic and early Tertiary times the Crocodylomorpha were far more diverse than they are now.... of the Norian
Saltoposuchus is an extinct genus of small , long- tailed crocodylomorph reptile , from the Norian of Europe and North America. The name translated means "leaping crocodile"....
Ichthyosaurs were giant marine reptiles that resembled fish and dolphins. Ichthyosaurs thrived during much of the Mesozoic era; based on fossil evidence, they first appeared approximately 245 million years ago and disappeared about 90 million years ago, about 25 million years before the dinosaurs became extinct.... s of the Norian
In phylogenetics, a group of organisms is said to be paraphyletic if the group contains its most recent common ancestor Common descent but does not contain all the descendants of that ancestor.... dinosauromorphs
Dinosauromorpha
Dinosauromorpha is the name of a clade of archosaurs that includes the direct sister groups of dinosaurs, and the order Dinosauria itself. Basal forms include Marasuchus, the perhaps identical Lagosuchus, and Lagerpeton from the Ladinian of Argentina, Dromomeron from the Norian of Arizona, New Mexico, and Texas, and "silesaurs... of the Norian
Dromomeron is a genus of dinosauromorpha archosauria from Late Triassic-age Chinle Formation rocks at Ghost Ranch, New Mexico . It is known from partial remains including a femur, belonging to an animal less than 1.0 meters long....
Eucoelophysis is a genus of dinosauriform from the Late Triassic Geologic period of New Mexico. It was assumed to be a coelophysid upon description, but a 2005 study by Nesbitt et al. found that it was actually a close relative of Silesaurus, which was independently supported by Ezcurra , who found it to be the sister group to D...
Placodonts were a group of marine reptiles that lived during the Triassic period, becoming extinct at the end of the period. It is believed that they were related to the Sauropterygia, the group that includes Plesiosaurs.... s of the Norian
Psephoderma is a genus of placodont that was very similar to its relatives Placochelys and Cyamodus. Psephoderma had a flattened skull and a narrow, straight rostrum....
In phylogenetics, a group of organisms is said to be paraphyletic if the group contains its most recent common ancestor Common descent but does not contain all the descendants of that ancestor.... Crurotarsans
Crurotarsi
The Crurotarsi are a group of Archosauria, whose name was erected as a Cladistics#Cladistic classification by Paul Sereno in 1991 to supplant the old term Pseudosuchia.... of the Carnian
Basutodon was a genus of rauisuchian archosaur from the Carnian-Norian-age Upper Triassic Lower Elliot Formation of Lesotho. It is based on teeth that were once confused with prosauropod remains, as with Teratosaurus....
Teratosaurus was a genus of rauisuchian known from the Triassic Stubensandstein of Germany and from the Krasiej?w of Poland. The type specimen was described by Christian Erich Hermann von Meyer on the basis of a left maxilla with large teeth, which he declared to be distinct from Belodon....
Mammaliaformes is a clade that contains the mammals and their closest Extinction relatives. The precise Phylogenetics is disputed due to the scantness of evidence in the fossil record.... of the Carnian
Eozostrodon was one of the earliest mammals. It lived during the late Triassic and the early Jurassic,about 210 million years ago. Eozostrodon was one of the largest early mammals, measuring more than a meter long....
Morganucodon is an early mammalian genus which lived during the Upper Triassic. It first appeared about 205 million years ago. This has also been identified with Eozostrodon....
'Acanthinites' is an extinct genus of cephalopod belonging to the Ammonite subclass which was described by Mojsisovics in 1893. Acanthinites has only one described species, A....
