OsteolepiformesPanderichthyidaeAcanthostegaIchthyostegaTulerpetonCrassigyrinusBaphetidaeColosteidaeDendrerpetonEryopsEcolsoniaTersomiusAmphibamusApateonDoleserpetonProterogyrinusArcheriaGephyrostegidaeSolenodonsaurusKotlassiaSeymouriaAriekanerpetonWestlothianaAistopodaAdelogyrinidaeNectrideaMicrobrachisPantylusRhynchonkosBrachystelechidaeUtaherpetonAsaphesteraCardiocephalusLysorophiaTriadobatrachusDiscoglossidaePipidaeKaraurusHynobiidaeSirenidaeProteidaeEocaeciliaRhinatrematidaeIchthyophiidaeLimnoscelisDiadectesSynapsidaCaptorhinidaeProcolophonidaeOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Valin_et_Laurin_2004a