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