AcanthostegaProterogyrinusBalanerpetonDendrerpetonTuditanusAsaphesteraHapsidopareionLlistrofusSaxonerpetonPantylusCordiocephalus_sternbergiCardiocephalus_peabodyiEuryodus_primusEuryodus_dalyaePelodosotisMicraroterRhynchonkosEocaeciliaMicrobrachisHyloplesionMazon_CreekBatropetesCarrollaQuasicaeciliaOdonterpetonUtaherpetonStegotretusSparodusSauropleura_pectinataSauropleura_scalarisSauropleura_bairdiPtyoniusCtenerpetonUrocordylusKeraterpeton_galvaniBatrachiderpetonDiceratosaurusDiplocaulus_magnicornisDiplocaulus_primusDiploceraspisScincosaurusBrachydectesAdelogyrinusOestocephalusPhlegethontiaGreererpetonSeymouria_baylorensisLimnoscelisBranchiosauridaeMicromelerpetontidaeTersomiusEcolsoniaTrematops_slash_AchelomaEryopsDoleserpetonSalamandersFrogsAlbanerpetontidaeEoscopusTambachianew_amphibamidTriadobatrachusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Anderson_2007a