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Encyclopedia > Sauropsida

Sauropsids
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Tetrapoda
Microphylum: Amniota
Nanophylum: Sauropsida
Superclasses

Anapsida
Eurapsida
Diapsida

Reptilia was an old kingdom or phylum classification that has since been divided into 4 classes. The classifications are made according to the positioning of temporal fenestrę (holes) on the back of the skull. The divisions were:

All of these but synapsida fall under Sauropsid, synapsida making up the other great amniote branch.


  Results from FactBites:
 
Sauropsid - Wikipedia, the free encyclopedia (377 words)
Sauropsida is an amniote clade that includes all recent and all or almost all extinct reptiles (excluding the Synapsida), and birds.
He also reinterpreted the Sauropsida and Theropsida to exclude birds and mammals respectively.  Sauropsida thus came to refer to the Procolophonia, Eosuchia, Millerosauria, Cheloniana (turtles), Squamata (lizards and snakes), Rhynchocephalia, Crocodylia, Thecodontia, Dinosaurs, Pterosaurs, Ichthyosaurs, and Sauropterygia ; while the Theropsida (=Synapsida) included the Pelycosaurs and the Therapsida (mammal-like reptiles).
In the new ( 2004) edition of his textbook, Dr Michael Benton uses the term "Class Sauropsida" to refer to all non-synapsid reptiles.
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