Sarcosaurus
|
Sarcosaurus Temporal range: Early Jurassic, 194 Ma |
|
|---|---|
 |
|
| Pelvis and parts of femur and dorsal vertebra | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Dinosauria |
| Order: | Saurischia |
| Suborder: | Theropoda |
| Superfamily: | †Coelophysoidea |
| Genus: |
†Sarcosaurus Andrews, 1921 |
| Species | |
|
|
| Synonyms | |
|
"Liassaurus" huenei? Magnosaurus woodwardi? Megalosaurus lydekkeri? |
|
"Liassaurus" huenei? Magnosaurus woodwardi? Megalosaurus lydekkeri?
Sarcosaurus (meaning "flesh lizard") is a genus of theropod dinosaur, either a coelophysoid or a basal ceratosaur, roughly 3.5 metres (11 ft) long. It lived during the Sinemurian stage of the Early Jurassic, about 194 million years ago. If the specimen called "Liassaurus" is confirmed as a synonym, Sarcosaurus would have an adult length over 6 metres (20 ft).
Fossils of Sarcosaurus were found in the Lower Lias of England. The type species, Sarcosaurus woodi, was first described by Charles William Andrews in 1921 shortly after a partial skeleton had been found by S.L. Wood near Barrow-on-Soar. The generic name is derived from Greek sarx, "flesh". The specific name honours Wood. The holotype, BMNH 4840/1, consists of a pelvis, a vertebra and the upper part of a femur. The preserved length of the femur is 31.5 centimetres (12.4 in).
A second species, Sarcosaurus andrewsi, was named by Friedrich von Huene in 1932, based on a 445 millimetres (17.5 in) tibia, BMNH R3542, described by Arthur Smith Woodward in 1908 and found near Wilmcote. Confusingly von Huene in the same publication named the very same fossil Magnosaurus woodwardi. Later he made a choice for S. andrewsi to be the valid name. In 1974 S. andrewsi was reclassified as Megalosaurus andrewsi by Michael Waldman, on the probably erroneous assumption it was a megalosaurid. A later study concluded the two species to be indistinguishable except for size, but other authors consider any identity to be unprovable as there are no comparable remains and conclude both species to lack autapomorphies and therefore to be nomina dubia.
...
Wikipedia