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