LepidosauromorphaRhynchosauriaProlacertiformesProterosuchidaeErythrosuchidaeProterochampsidaeEuparkeriaParasuchiaSuchiaOrnithosuchidaeLagosuchusDinosauriaScleromochlusPterosauriaOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Bennett_1996a