PetrolacosaurusYounginaGephyrosaurusSquamataProlacertaMacrocnemusTanystropheusTrilophosaurusHowesiaMesosuchusRhynchosaurusScaphonyxStenaulorhynchusHyperodapedonProterosuchusEuparkeriaChampsosaurusCteniogenysLazurussuchusProtorosaurusMegalancosaurusLangobardisaurusDrepanosaurusT_buettneriT_jacobsiOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Spielman_etal_2008ab