(Temnodontosaurus,(Ichthyosaurus,(Stenopterygius,(Chacaicosaurus,(Arthropterygius,(O_icenicus,(Brachypterygius,((Maiaspondylus,(Mollesaurus,(Aegirosaurus,Sveltonectes))),(P_hercynicus,(Caypullisaurus,(P_australis,Athabascasaurus))))))))))); (Temnodontosaurus,(Ichthyosaurus,(Stenopterygius,(Chacaicosaurus,(Arthropterygius,((O_icenicus,Brachypterygius),((Maiaspondylus,(Mollesaurus,(Aegirosaurus,Sveltonectes))),(P_hercynicus,(Caypullisaurus,(P_australis,Athabascasaurus))))))))));