PlesiosaurusAristonectesBrancasaurusCallawayasaurusCryptoclidusDolichorhynchopsEromangasaurusKimmerosaurusLibonectesMicrocleidusMuraenosaurusOccitanosaurusStyxosaurusTerminonatatorTricleidusTrinacromerumTuarangisaurusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Kear_2005a