eusthenopteronpanderichthysacanthostegaichthyostegacrassigyrinusloxommatidsanthracosaursseymouriamorphswestlothianadiadectomorphsamniotescolosteidstemnospondylsnectrideansmicrosaursadelogyrinidslysorophidsaistopodsOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Carroll_1995a