Seymouriidae

Synapsida

Parareptilia

Captorhinidae

Araeoscelidia

Apsisaurus

Younginiformes

Claudiosaurus

Saurosternon

Palaeagama

Sophineta

Kuehneosauridae

Choristodera

Rhynchocephalia

Megachirella_wachtleri

Squamata

Coelurosauravus

Drepanosauridae

Tanystropheus

Macrocnemus

Prolacerta

Archosauriformes

Rhynchosauria

Trilophosaurus

Askeptosaurus

Thalattosaurus

Clarazia

Ichthyopterygia

Hupehsuchus

Helveticosaurus

Testudines

Placodus

Pachypleurosaurs

Pistosauridae

Simosaurus