(Acanthostega,(Greererpeton,((((Caerorhachis,((Eoherpeton,(Crassigyrinus,(Proterogyrinus,Pholiderpeton))),(Gephyrostegus,Bruktererpeton))),(Seymouria,(((Casineria,Westlothiana),(Petrolacosaurus,(Paleothyris,Captorhinus))),(Saxonerpeton,Microbrachis)))),(Balanerpeton,Dendrerpeton)),(Whatcheeria,(Eucritta,Baphetes)))));