(Claudiosaurus_germaini,(Petrolacosaurus_kansensis,Youngina_capensis,(Askeptosaurus_italicus,(TMP_88_dot_99_dot_21,(Oregon_thalattosaur,(Gunakadeit_joseeae,((Agkistrognathus_campbelli,Clarazia_schinzi,Concavispina_biseridens,Hescheleria_rubeli,Koessen_thalattosaur,Nectosaurus_halius,Paralonectes_merriami,(Xinpusaurus_xingyiensis,(Xinpusaurus_kohi,Xinpusaurus_suni))),(Thalattosaurus_alexandrae,Thalattosaurus_borealis))))),(Endennasaurus_acutirostris,(Anshunsaurus_huangnihensis,(Anshunsaurus_huangguoshuensis,Anshunsaurus_wushaensis,Miodentosaurus_brevis))))));