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