Seymouriidae
Synapsida
Captorhinidae
Parareptilia
Araeoscelidia
Apsisaurus
Younginiformes
Claudiosaurus
Kuehneosauridae
Ichthyopterygia
Coelurosauravus
Testudines
Thalattosaurifor
Choristodera
Archosauriformes
Rhynchosauria
Trilophosaurus
Tanystropheus
Prolacerta
Squamata
Rhynchocephalia
Placodontia
Eosauropterygia