(Eusthenopteron,(Ichthyostega,(Acanthostega,(Crassigyrinus,(Whatcheeria,((Eucritta,(((Ptyonius,(Adelogyrinus,Greererpeton)),(Balanerpeton,Dendrerpeton)),(Caerorhachis,((Eoherpeton,(Pholiderpeton,Proterogyrinus)),(Gephyrostegus,(Seymouria,(Westlothiana,(Microbrachis,Saxonerpeton)))))))),(Baphetes,Megalocephalus)))))));