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Sauropsid
| Sauropsids Temporal range: Pennsylvanian – Recent
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| (unranked): | Sauropsida
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Sauropsids are a group of land vertebrates which includes all existing reptiles and birds and their fossil ancestors.
They are one of the two groups which evolved from egg-laying amniotes in the first part of the Carboniferous period.[1][2][3]
The synapsids are the other group which evolved from amniotes. They gave rise, eventually, to the mammals.
Living sauropsids include lizards, snakes, turtles, crocodiles, and birds. Extinct sauropsids include non-avian dinosaurs, pterosaurs, plesiosaurs, ichthyosaurs, and many others.
- ↑ Gauthier J.A; Kluge A.G & Rowe T. 1988. The early evolution of the Amniota. pp103–155 in Michael J. Benton (ed) The phylogeny and classification of the tetrapods, Volume 1: Amphibians, Reptiles, Birds. Systematics Association, Special vol 35A. Clarendon Press, Oxford.
- ↑ Gauthier J.A. 1994. The diversification of the amniotes. In D.R. Prothero and R.M. Schoch (eds) Major features of vertebrate evolution. 129-159. Knoxville, Tennessee: The Paleontological Society.
- ↑ Laurin M. & Gauthier J.A. 1996. Amniota, mammals, reptiles (turtles, lizards, Sphenodon, crocodiles, birds) and their extinct relatives. Version 01 January 1996. The Tree of Life Web Project.
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