(Petrolacosaurus,(Youngina,(((Gephyrosaurus,Squamata),(Proganochelys_quenstedti,((Trilophosaurus,((Prolacerta,(Proterosuchus,Euparkeria)),(Mesosuchus,(Howesia,(Rhynchosaurus,(Stenaulorhynchus,(Scaphonyx,Hyperodapedon))))))),((Macrocnemus,(Tanystropheus,Langobardisaurus)),(Protorosaurus,(Megalancosaurus,Drepanosaurus)))))),(Lazurussuchus,(Champsosaurus,Cteniogenys)))));