Seymouriidae

Synapsida

Parareptilia

Captorhinidae

Araeoscelidia

Orovenator

Lanthanolania

Tangasaurus

Thadeosaurus

Youngina

Hovasaurus

Acerosodontosaurus

Claudiosaurus

Choristodera

Coelurosauravus

Sophineta

Pamelina

Kuehneosauridae

Squamata

Rhynchocephalia

Macrocnemus

Tanystropheus

Prolacerta

Trilophosaurus

Archosauriformes

Rhynchosauria

Askeptosaurus

Thalattosaurus

Clarazia

Wumengosaurus

Utatsusaurus

Chaohusaurus

Hupehsuchus

Nanchangosaurus

Sinosaurosphargis

Largocephalosaurus

Eusaurosphargis_dalsassoi

Helveticosaurus

Placodus

Pachypleurosaurs

Pistosauridae

Simosaurus