OUTGROUP
Caseidae
Ophiacodontidae
Edaphosauridae
Sphenacodontidae
CYNODONTIA
Gorgonopsia
Millerettidae
Lanthanosuchidae
Acleistorhinidae
Nycteroleteridae
Procolophonoidea
TESTUDINES
Pareiasauridae
Captorhinidae
Protorothyrididae
Araeoscelididae
Claudiosauridae
Younginiformes
Choristodera
Prolacertiformes
ARCHOSAURIFORMES
Trilophosauridae
Rhynchosauria
Eosauropterygia
Placodontia
Kuehneosauridae
SQUAMATA
RHYNCHOCEPHALIA