(outgroup,(Coniasaurus_crassidens,Coniasaurus_gracilodens,Dolichosaurus_longicollis,(Aigialosaurus_dalmaticus,Aigialosaurus_buccichi,Carsosaurus),(Halisaurus,((Ectenosaurus,(Clidastes,Mosasaurus)),(Tylosaurus,Platecarpus)))));