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