bauri: a lightly built dinosaur that measured up to 3 metres (9.8 ft) in length and was more than a meter tall at the hips. Description Ĭoelophysis is known from a number of complete fossil skeletons of the species C. This was supported by Barta and colleagues in 2018, noting that Coelophysis still bears the vestigial 5th metacarpal, a feature absent in Megapnosaurus. In a phylogenetic analysis by Ezcurra (2017), Megapnosaurus was recovered in a clade with Segisaurus and Camposaurus, supporting the generic distinction of Megapnosaurus. Ezcurra and Novas (2007) and Ezcurra (2007) also concluded that 'Syntarsus' was synonymous with Coelophysis. In 2004 'Syntarsus' was found to be synonymous with Coelophysis by Tykoski and Rowe (2004). Over the years paleontologists assigned the genus to Ceratosauridae (Welles, 1984), Procompsognathidae (Parrish and Carpenter, 1986) and Ceratosauria (Gauthier, 1986). The taxon 'Podokesauridae', was abandoned because its type specimen was destroyed in a fire and can no longer be compared to new finds. 'Syntarsus' rhodesiensis was first described by Raath (1969) and assigned to Podokesauridae. Two Ghost Ranch specimens preserved together, including the neotype, AMNH The Ghost Ranch specimens were so numerous, including many well-preserved and fully articulated specimens, that one of them has since become the diagnostic, or type specimen, for the entire genus, replacing the original, poorly preserved specimen. Colbert conducted a comprehensive study of all the fossils found up to that date and assigned them to Coelophysis. American Museum of Natural History paleontologist Edwin H. Colbert, in New Mexico, at the Ghost Ranch, close to the original find. In 1947, a substantial 'graveyard' of Coelophysis fossils was found by George Whitaker, the assistant of Edwin H. However, the first finds were too poorly preserved to give a complete picture of the new dinosaur. The name Coelophysis comes from the Greek words κοῖλος/koilos (meaning 'hollow') and φύσις/physis (meaning 'form'), together 'hollow form', which is a reference to its hollow vertebrae. bauri as the type species, which was named for Georg Baur, a comparative anatomist whose ideas were similar to Cope's. Two years later, Cope corrected his classification after realizing differences in the vertebrae, and named Coelophysis, with C. Later in 1887 Cope reassigned the material to a yet another genus, Tanystropheus. Early in 1887, Cope referred the specimens collected to two new species, C. An amateur fossil collector working for Cope, David Baldwin, had found the first remains of the dinosaur in 1881 in the Chinle Formation in northwestern New Mexico. bauri was previously classified in, for C. Edward Drinker Cope first named Coelophysis in 1889 to name a new genus, outside of Coelurus and Tanystropheus, which C. The type species of Coelophysis was originally named as a species of Coelurus. The famed Coelophysis quarry of Ghost Ranch, as it appears in 2019.

Coelophysis is one of the most specimen-rich dinosaur genera. The names Longosaurus and Rioarribasaurus are synonymous with Coelophysis. bauri, originally given to the genus Coelurus by Edward Drinker Cope in 1887, was described by the latter in 1889. Scattered material representing similar animals has been found worldwide in some Late Triassic and Early Jurassic formations. It is one of the earliest known dinosaur genera. Ĭoelophysis was a small, slenderly-built, ground-dwelling, bipedal carnivore that could grow up to 3 m (9.8 ft) long. rhodesiensis, has been found in South Africa and Zimbabwe, though this interpretation has been challenged since 2017. Coelophysis ( / s ɛ ˈ l ɒ f ɪ s ɪ s/ sel- OF-iss-iss traditionally / ˌ s ɛ l oʊ ˈ f aɪ s ɪ s/ SEL-oh- FY-siss or / ˌ s iː l oʊ ˈ f aɪ s ɪ s/ SEE-loh- FY-siss, as heard more commonly in recent decades ) is an extinct genus of coelophysid theropod dinosaur that lived approximately 228 to 200 million years ago during the latter part of the Triassic Period from the Carnian and Rhaetian faunal stages in what is now the southwestern United States a specimen possibly belonging to the second species, C.

Susannah flood legs and feet