Diadectomorpha
Seymouriamorpha
Caseidae
Mesosauridae
Procolophonidae
Millerettidae
Coelostegus
Hylonomus
Brouffia
Anthracodromeus
Cephalerpeton
Paleothyris
Protorothyris
Araeoscelis
Petrolacosaurus
Thuringothyris
Concordia
Romeria_texana
Rhiodenticulatus
Protocaptorhinus
Saurorictus
Labidosaurikos
Labidosaurus
Captorhinus_aguti
Captorhinus_laticeps