Ancestor

Captorhinidae

Araeoscelidia

Hovasaurus

Youngina

Claudiosaurus

Odontochelys

Testudines

Kuehneosauridae

Squamata

Rhynchocephalia

Prolacertiformes

Choristodera

Archosauriformes

Trilophosaurus

Rhynchosauria

Ichthyopterygia

Thalattosauria

Helveticosaurus

Hanosaurus

Eusaurosphargis

Sinosaurosphargis

WinterswijkSkull

Paraplacodus

Placodus

Cyamodus

Psephoderma

Diandongosaurus

Wumengosaurus

AnaroDactylo

SerpianoNeustico

Dianopachysaurus

Keichousaurus

Simosaurus

Germanosaurus

Lariosaurus

Nothosaurus

Corosaurus

Cymatosaurus

Pistosaurus

Yunguisaurus

Augustasaurus

Thalassiodracon

Bobosaurus

Plesiosaurus