Ancestor

Captorhinidae

Araeoscelidia

Hovasaurus

Youngina

Claudiosaurus

Odontochelys

Testudines

Kuehneosauridae

Squamata

Rhynchocephalia

Prolacertiformes

Choristodera

Archosauriformes

Trilophosaurus

Rhynchosauria

Ichthyopterygia

Thalattosauria

Helveticosaurus

Eusaurosphargis_dalsassoi

WinterswijkSkull

Paraplacodus

Pararcus_diepenbroeki

Placodus

Cyamodus

Psephoderma

Sinosaurosphargis

Hanosaurus

Wumengosaurus

AnaroDactylo

SerpianoNeustico

Dianopachysaurus

Keichousaurus

Diandongosaurus

Germanosaurus

Simosaurus

Cymatosaurus

Corosaurus

Lariosaurus

Nothosaurus

Pistosaurus

Yunguisaurus

Plesiosaurus

Augustasaurus