EusthenopteronAcanthostegaAcherontiscusAdelogyrinusAdelospondylusAlbanerpetonAmphibamusAnthracosaurusApateonArcheriaAriekanerpetonAsaphesteraBalanerpetonBaphetesBatrachiderpetonBatropetesBrachydectesBroiliellusBruktererpetonCaerorhachisCapetusCaptorhinusCardiocephalusChenoprosopusCochleosaurusColosteusCrassigyrinusDendrerpetonDiadectesDiceratosaurusDiplocaulusDiploceraspisDiscosauriscusDoleserpetonDolichopareiasEcolsoniaEdopsEocaeciliaEogyrinusEoherpetonEoscopusEryopsEucrittaEuryodusGephyrostegusGreererpetonHapsidopareionHyloplesionIchthyostegaIsodectesKaraurusKeraterpetonKotlassiaLeptorophaLeptorophusLethiscusLimnoscelisMegalocephalusMicraroterMicrobrachisMicromelerpetonMicrophonNeldasaurusNotobatrachusOdonterpetonOestocephalusOrobatesOssinodusPaleothyrisPanderichthysPantylusPederpesPelodosotisPetrolacosaurusPhlegethontiaPholiderpetonPhonerpetonPlatyrhinopsProterogyrinusPtyoniusRhynchonkosSauropleuraSaxonerpetonSchoenfelderpetonScincosaurusSeymouriaSilvanerpetonSolenodonsaurusStegotretusTrematopsTriadobatrachusTrimerorhachisTseajaiaTuditanusTulerpetonUrocordylusUtegeniaValdotritonVentastegaViaerellaWestlothianaWhatcheeriaOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Ruta_et_Coates_2007a