Chickasha Formation Captorhinidae Dimacrodon Angelosaurus Cotylorhynchus List of the Paleozoic life of Oklahoma List of the Paleozoic life of Texas Batrachosauria Jiyuanitectum Gecatogomphius Labidosaurus Halgaitosaurus Balearosaurus Uralerpeton Spinarerpeton Ariekanerpeton Dromotectum Captorhinus Opisthodontosaurus Enosuchus Limnoscelidae Ambedus Orobates Moradisaurus Labidosaurikos Labidosauriscus Phanerosaurus Suchonica Araeoscelis Utegenia Baeotherates Hylonomus Waggoneria Laosuchus Zarcasaurus Rhodotheratus Limnostygis Kotlassia Desmatodon Madygenerpeton Seymouriamorpha Diasparactus Alveusdectes Phratochronis Chroniosaurus Acrodenta Pro…

otocaptorhinus Chroniosuchus Chroniosuchidae Bystrowiana Axitectum Bystrowiella Karpinskiosaurus Ingentidens Stephanospondylus Spinoaequalis Coelostegus Saurorictus Thuringothyris Reiszorhinus Protorothyris Romeria (reptile) Chroniosuchia Discosauriscus Makowskia Anthracodromeus Jarilinus Gansurhinus Leptoropha Bystrowianidae Solenodonsaurus Tseajaia Synesuchus Cephalerpeton Paleothyris Brouffia Rhiodenticulatus Euconcordia Petrolacosaurus Diadectidae Limnoscelis Araeoscelidia Diadectes S

eymouria Westlothiana Protorothyrididae Termonerpeton Anthracosauria Gephyrostegidae Casineria Silvanerpeton Reptiliomorpha Eldeceeon Caerorhachis Sauropsida Lepospondyli Labyrinthodontia Embolomeri Vale Formation