BalanerpetonSclerocephalusUranocentrodonWetlugasaurusBenthosuchusThoosuchusTrematosaurusParotosuchus_madagascariensisParotosuchus_nasutusParotosuchus_orenburgensisMastodonsaurusEryosuchusWellesaurusParotosuchus_pronusKupferzelliaEocyclotosaurusQuasicyclotosaurusCyclotosaurusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Schoch_2000a