Seymouriidae
Synapsida
Parareptilia
Captorhinidae
Araeoscelidia
Acerosodontosaurus
Kenyasaurus
Youngina
Galesphyrus
Lanthanolania
Claudiosaurus
Coelurosauravus
Choristodera
Testudines
Kuehneosauridae
Rhynchocephalia
Squamata
Helveticosaurus
Placodus
Pachypleurosaurs
Simosaurus
Pistosauridae
Tanystropheus
Macrocnemus
Prolacerta
Trilophosaurus
Rhynchosauria
Archosauriformes
Askeptosaurus
Clarazia
Thalattosaurus
Ichthyopterygia
Hupehsuchus
Palaeagama
Saurosternon
Tangasaurus
Hovasaurus
Thadeosaurus