(Petrolacosaurus,(Claudiosaurus,Thadeosaurus,Hovasaurus,(Wumengosaurus,((Nanchangosaurus,(Eohupehsuchus,(Hupehsuchus,(Parahupehsuchus,Eretmorhipis)))),((Sclerocormus,Cartorhynchus),((Chaohusaurus_geishanensis,Chaohusaurus_zhangjiawanensis,(Chaohusaurus_chaoxianensis,Chaohusaurus_brevifemoralis)),((Parvinatator,(Utatsusaurus,(Grippia,Gulosaurus))),(((Mixosaurus_cornalianus,(Mixosaurus_panxianensis,Mixosaurus_kuhnschnyderi),(Phalarodon_atavus,(Phalarodon_fraasi,Phalarodon_callawayi))),((Besanosaurus,(Guizhouichthyosaurus,Callawayia_wolonggangensis,(Shastasaurus,(Guanlingsaurus,(Shonisaurus_popularis,Shonisaurus_sikanniensis))))),(Californosaurus,(Callawayia_neoscapularis,((Toretocnemus,(Qianichthyosaurus_zhoui,Qianichthyosaurus_xingyiensis)),(Macgowania,(Hudsonelpidia,(Malawania,((Suevoleviathan,((Leptonectes_tenuirostris,Leptonectes_moorei,Leptonectes_solei,(Chacaicosaurus,Hauffiopteryx)),(Ichthyosaurus,(Stenopterygius,(Aegirosaurus,Acamptonectes,Maiaspondylus,Arthropterygius,Athabascasaurus,Sveltonectes,Brachypterygius,Caypullisaurus,Mollesaurus,Leninia,Platypterygius_australis,Platypterygius_americanus,Cryopterygius,Ophthalmosaurus_icenicus,Ophthalmosaurus_natans,Palvennia,Sisteronia))))),(Temnodontosaurus,(Excalibosaurus,Eurhinosaurus))))))))))),(Cymbospondylus_piscosus,Cymbospondylus_buchseri,Cymbospondylus_nichollsi,Xinminosaurus,Thalattoarchon)))))))));