(Temnodontosaurus,(Ichthyosaurus_communis,(Stenopterygius_quadriscissus,(Chacaicosaurus_cayi,(Arthropterygius_chrisorum,((Mollesaurus_perialus,(Ophthalmosaurus_icenicus,(Ophthalmosaurus_natans,Acamptonectes_densus))),((Brachypterygius_extremus,(Maiaspondylus_lindoei,(Aegirosaurus_leptospondylus,Sveltonectes_insolitus))),(Platypterygius_hercynicus,(Caypullisaurus_bonpartei,(Platypterygius_australis,Athabascasaurus_bitumineus))))))))));