(Eusthenopteron_foordi,(Acanthostega_gunnari,(Ichthyostega_stensioei,(Crassigyrinus_scoticus,((((Caerorhachis_bairdi,((Ptyonius_marshii,(Adelogyrinus_simorhynchus,Greererpeton_burkemorani)),(Balanerpeton_woodi,Dendrerpeton_acadianum))),(Silvanerpeton_miripedes,((Eoherpeton_watsoni,(Anthracosaurus_russelli,(Proterogyrinus_scheelei,(Archeria_crassidisca,Pholiderpeton_scutigerum)))),(Gephyrostegus_bohemicus,(Bruktererpeton_fiebigi,((Seymouria_baylorensis,(Utegenia_shpinari,(Ariekanerpeton_sigalovi,Discosauriscus_austriacus))),(Paleothyris_acadiana,(Casineria_kiddi,Westlothiana_lizziae,(Microbrachis_pelikani,Saxonerpeton_geinitzi))))))))),(Eucritta_melanolimnetes,(Loxomma_allmanni,(Baphetes_kirkbyi,Megalocephalus_pachycephalus)))),(Pederpes_finneyae,Whatcheeria_deltae))))));