(Acanthostega,((Ymeria,(Ichthyostega,(Whatcheeria,((Greererpeton,(Crassigyrinus,(Baphetes,(Parrsboro_jaw,((Balanerpeton,Dendrerpeton),(Caerorhachis,(Silvanerpeton,(Eoherpeton,Proterogyrinus)))))))),(Pederpes,(Sigournea,Occidens)))))),(Ventastega,(Elginerpeton,(Densignathus,(Metaxygnathus,((Elpistostege,Tiktaalik),(Eusthenopteron,Panderichthys))))))));