Osteolepiformes
Panderichthyidae
Acanthostega
Ichthyostega
Tulerpeton
Crassigyrinus
Colosteidae
Baphetidae
Archeria
Proterogyrinus
Dendrerpeton
Eryops
Ecolsonia
Doleserpeton
Amphibamus
Apateon
Tersomius
Gephyrostegidae
Kotlassia
Ariekanerpeton
Seymouria
Solenodonsaurus
Diadectes
Limnoscelis
Synapsida
Procolophonidae
Captorhinidae
Westlothiana
Adelogyrinidae
Aistopoda
Nectridea
Asaphestera
Utaherpeton
Microbrachis
Pantylus
Cardiocephalus
Rhynchonkos
Brachystelechidae
Lysorophia
Triadobatrachus
Pipidae
Discoglossidae
Proteidae
Hynobiidae
Karaurus
Sirenidae
Eocaecilia
Ichthyophiidae
Rhinatrematidae