Ancestor

Captorhinidae

Araeoscelidia

Hovasaurus

Youngina

Claudiosaurus

Prolacertiformes

Archosauriformes

Trilophosaurus

Rhynchosauria

Kuehneosauridae

Squamata

Rhynchocephalia

Odontochelys

Testudines

Ichthyopterygia

Thalattosauria

Helveticosaurus

Hanosaurus

Eusaurosphargis

Majiashanosaurus

Sanchiaosaurus

Kwangsisaurus

Chinchenia

Dawazisaurus

Qianxisaurus

Dianopachysaurus

Keichousaurus

Anarosaurus_dash_Dactylosaurus

Serpianosaurus_dash_Newticosaurus

Largocephalosaurus_polycarpon

Largocephalosaurus_qianensis

Sinosaurosphargis

Simosaurus

Germanosaurus

Lariosaurus

Nothosaurus

Palatodonta

Paraplacodus

PlacodUs

Cyamodus

Psephoderma

Wumengwaurus

Diandongosaurus

Corosaurus

Cymatosaurus

Pistosaurus

Yunguisaurus

Plesiosaurus

Augustasaurus