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