Class Reptilia
Class Reptilia
Reptiles
- Subclass Anapsida
- Order Cotylosauria*
Cotylosaurs
- Order Mesosauria*
Mesosaurs
- Order Chelonia
Turtles
- Subclass Lepidosauria
Lepidosaurias
- Subclass Archosauria
Ruling Reptiles
- Order Thecodontia*
Primitive Archosaurs
- Order Crocodilia
Crocodilians
- Order Saurischia*
Carnivorus Dinosars and Giant Herbivorous Dinosaurs
- Order Ornithischia*
Herbivorous Dinosaurs
- Order Pterosauria*
Pterodactyls
- Subclass Euryapsida*
Plesiosaurs and Relatives
- Order Araeoscelidia*
Primitive Euryapsids
- Order Sauropterygia*
Nothosaurs and Plesiosaurs
- Order Placodontia*
Placodonts
- Order Ichthyosauria*
Ichthyosaurs
- Subclass Synapsida*
Mammal-like Reptiles
- Order Pelycosauria*
Primitive Synapsids, Pelycosaurs
- Order Therapsida*
Advanced Synapsids, Therapsids
*extinct
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