Coelophysidae
| Coelophysids Temporal range: Late Triassic-Early Jurassic, 220–183 Ma |
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| Artist's restoration of Coelophysis bauri | |
Scientific classification  |
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | Dinosauria |
| Order: | Saurischia |
| Suborder: | Theropoda |
| Superfamily: | †Coelophysoidea |
| Family: | †Coelophysidae Nopcsa, 1923 |
| Genera | |
| Synonyms | |
The Coelophysidae are a family of primitive carnivorous theropod dinosaurs. Most species were relatively small in size. The family flourished in the Late Triassic and Early Jurassic periods.
Under cladistic analysis, Coelophysidae was first defined by Paul Sereno in 1998 as the most recent common ancestor of Coelophysis bauri and Procompsognathus triassicus, and all of that common ancestor's descendants.
Coelophysidae is part of the clade Coelophysoidea. The older term "Podokesauridae", named 14 years prior to Coelophysidae (which would normally grant it priority), is now usually ignored, since its type specimen was destroyed in a fire and can no longer be compared to new finds.[1]
[edit] Classification
- Family Coelophysidae
- ?Pterospondylus
- Subfamily Coelophysinae
- Camposaurus
- Coelophysis
- Megapnosaurus (formerly Syntarsus)
- ?Subfamily Podokesaurinae
- Subfamily Procompsognathinae
- Subfamily Segisaurinae
[edit] Phylogeny
The cladogram below was recovered in a study by Matthew T. Carrano, John R. Hutchinson and Scott D. Sampson, 2005.[2]
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The cladogram below follows the topology from a 2011 analysis by paleontologists Martin D. Ezcurra and Stephen L. Brusatte.[3]
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[edit] References
- ^ Sereno, P. (1999). "Taxon Search: Coelophysidae". Accessed 2009-09-02.
- ^ Carrano, M.T, Hutchinson, J.R, Sampson, S.D. (2005). "New information on Segisaurus halli, a small theropod dinosaur from the Early Jurassic of Arizona." Journal of Vertebrate Paleontology. 25(4):835-849.
- ^ Ezcurra, M.D.; and Brusatte, S.L. (2011). "Taxonomic and phylogenetic reassessment of the early neotheropod dinosaur Camposaurus arizonensis from the Late Triassic of North America". Palaeontology 54 (4): 763–772. doi:10.1111/j.1475-4983.2011.01069.x.
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