| Subsequent combination | : | †Anatotitan longiceps (Marsh, 1897) | |
Ref: G. Olshevsky, 1991: 24. [new] |
| Former combination | : | †Anatosaurus longiceps Lull & Wright, 1942 | |
Ref: 2021-present: [9 Aug 2025]. |
| Former combination | : | †Anatotitan longiceps (Marsh, 1897) | |
Ref: 2021-present: [9 Aug 2025]. |