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