Seymouriidae
Diadectomorpha
Mesosauridae
Ophiacodon
Casea
Edaphosauridae
Sphenacodontidae
Gorgonopsia
Procynosuchus
Morganucodon
Zaedyus
Dasypus
Panochthus
Doedicurus
Glyptotherium
Glyptodon
Millerettidae
Macroleter
Lanthanosuchidae
Acleistorhinus
Owenetta
Procolophon
Bradysaurus
Anthodon
Pareiasaurus
Scutosaurus
Captorhinidae
Paleothyris
Araeoscelidia
Claudiosaurus
Younginiformes
Prolacertiformes
Choristodera
Trilophosaurus
Rhyncosauria
Kuehneosauridae
Eosauropterygia
Cyamodontoidea
Placodus
Proganochelys
Baena
Trionyx
Geochelone
Chelydra
Pseudemys
Sphenodon
Heloderma
Glyptosaurinae
Tiliqua
Corucia
Zonosaurus
Cordylus
Elgaria
Gerrhonotus
Ophisaurus
Anguis
Malititanosaurid
Saltasaurus
Malagasytitanosaurid
Scutellosaurus
Scelidosaurus
Stegosaurus
Sauropelta
Pinacosaurus
Euoplocephalus
Protosuchus
Paratypothorax
Rutiodon
Pseudopalatus
Desmatosuchus
Typothorax
Coahomasuchus
Simosuchus
Akanthosuchus
Goniopholis
Mahajangasuchus
Alligator
Gavialis
Caiman
Crocodylus