Pelycosaur
(tree size 93)
Pelycosauria
Eupelycosauria
(tree size 30582)
Myosauroides
Eosyodon
Angonisaurus
(tree size 1)
Hexacynodon
Parabradysaurus
Aloposauroides
Arctosuchus
(tree size 1)
Bolotridon
(tree size 1)
Brachyprosopus
(tree size 1)
Brachyuraniscus
Broilius
Calleonasus
Cerataelurus
Cerdodon
(tree size 1)
Chanaria
Chiwetasaurus
Chthomaloporus
Compsodon
Cromptodon
(tree size 1)
Cryptocynodon
Cteniosaurus
Delphaciognathus
Diaelurodon
Digalodon
Dongusaurus
Echinerpeton
Edaxosaurus
Elatosaurus
Emydochampsa
Emydopsoides
Emydorhinus
Emydorhynchus
Emyduranus
(tree size 1)
Endogomphodon
Eurosaurus
Eurychororhinus
Glochinodontoides
Haughtoniana
Milosaurus
(tree size 1)
Ictidopsis
(tree size 1)
Ictidosuchops
Koupia
Micranteosaurus
Mnemeiosaurus
Myctosuchus
Nitosaurus
(tree size 1)
Orthopus
Pachyrhinos
Parringtoniella
Phoneosuchus
Porosteugnathus
Prodicynodon
(tree size 1)
Propelanomodon
Pseudanteosaurus
Putillosaurus
(tree size 1)
Reiszia
Rhigosaurus
Rhinodicynodon
Rhopalorhinus
Sangusaurus
(tree size 1)
Scalopolacerta
Storthyggnathus
Synostocephalus
Tangagorgon
Taognathus
Titanognathus
Traversodontoides
(tree size 1)
Wangwosaurus
Wangwusaurus
Hofmeyria
Ictidostoma
Broomosuchus
Newtonella
Heuneus
Watsoniella
Gorgodon
Tetraceratopsidae