(Petrolacosaurus,(Youngina,((Megachirella_wachtleri,(Gephyrosaurus,Squamata),((Trilophosarus,((Prolacerta,(Proterosuchus,Euparkeria)),(Mesosuchus,(Howesia,(Rhynchosaurus,(Stenaulorhynchus,(Scaphonyx,Hyperodapedon))))))),(Protorosaurus,(Macrocnemus,(Tanystropheus,Langobardisaurus))))),(Drepanosauridae,(Lazarussuchus,(Champsosaurus,Cteniogenys))))));