Class Mammalia)** Class Sauropsida*** Subclass Anapsida**** Order Testudines (turtles)**** A series of unassigned anapsid families, corresponding to Captorhinida, Mesosauria and Procolophonomorpha*** Subclass Diapsida**** Order Araeoscelidia**** Order Younginiformes**** Infraclass Ichthyosauria**** Infraclass Lepidosauromorpha***** Superorder Sauropterygia****** Order Placodontia****** Order Nothosauroidea****** Order Plesiosauria***** Superorder Lepidosauria****** Order Sphenodontia (tuatara)****** Order Squamata (lizards & snakes)**** Infraclass Archosauromorpha***** Order Prolacertiformes***** Division Archosauria****** Subdivision Crurotarsi******* Superorder Crocodylomorpha******** Order Crocodilia******** Order Phytosauria******** Order Rauisuchia******** Order Rhynchosauria****** Subdivision Avemetatarsalia******* Infradivision Ornithodira******** Order Pterosauria******** Superorder Dinosauria********* Order Ornithischia********* Order Saurischia (incl.
To ni mogoče opredeliti z sinapomorfijo, kot bi bilo pravilno.