Class Reptilia Linnaeus, 1758 - reptiles Subclass Archosauria Cope, 1869 see Division Archosauria Cope, 1869 Order †Ornithischia Seeley, 1887 Suborder †Ankylosauria Osborn, 1923 see Infraorder Ankylosauria Osborn, 1923 Family †Acanthopholididae Nopcsa, 1915 see Family Nodosauridae Marsh, 1890