PetrolacosaurusUtatsusaurusGrippiaParvinatatorChaohusaurusCymbospondylusMixosaurusPhalarodonXinminosaurusBesanosaurusShastasaurusShonisaurusCallawayiaGuizhouichthyosaurusCalifornosaurusTorectocnemusQianichyosaurusHudsonelpidiaMacgowaniaSuevoleviathanTemnodontosaurusLeptonectesExcalibosaurusEurhinosaurusIchthyosaurusStenopterygiusBrachypterygiusOphthalmosaurusAegirosaurusCaypullisaurusPlatypterygiusMaiaspondylusClaudiosaurusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Cuthbertson_etal_2013b