(Mikadocephalus_gracilirostris,(Macgowania_janiceps,(Hudsonelpidia_brevirostris,((Temnodontosaurus_spp,((Leptonectes_tenuirostris,BRLSI_M1399),(Excalibosaurus_costini,Eurhinosaurus_longirostris))),(Suevoleviathan_disinteger,(Hauffiopteryx_typicus,((Ichthyosaurus_communis,Malawania_anachronus),(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_bonapartei,(Platypterygius_australis,Athabascasaurus_bitumineus)))))))))))))));