| Current rank | : | †Ornithopoda (Infraorder) Marsh, 1881 | |
Ref: M.J. Benton, 2015: 441. [inferred] |
| Former rank | : | †Ornithopoda (Suborder) Marsh, 1871 | |
Ref: J.T. Sankey, 2001: 209. [inferred] |
| Incorrect spelling | : | †Ornithopodia (Order) | |
Ref: Sankey, 2001: 209. [inferred] |