| A (0 species) |
| B (0 species) |
| C (1 species) |
| Cerasinops - Late Cretaceous |
| D (0 species) |
| E (0 species) |
| F (0 species) |
| G (1 species) |
| Gryphoceratops - Late Cretaceous, 83.5 Ma |
| H (0 species) |
| I (0 species) |
| J (0 species) |
| K (0 species) |
| L (1 species) |
| Leptoceratops - Late Cretaceous, 66.8 Ma |
| M (1 species) |
| Montanoceratops - 70 Ma Early Maastrichtian |
| N (0 species) |
| O (0 species) |
| P (1 species) |
| Prenoceratops - Late Cretaceous 74.3 Ma |
| Q (0 species) |
| R (0 species) |
| S (0 species) |
| T (0 species) |
| U (2 species) |
| Udanoceratops - Late Cretaceous, Campanian |
| Unescoceratops - Late Cretaceous, 76.5-75 Ma |
| V (0 species) |
| W (0 species) |
| X (0 species) |
| Y (0 species) |
| Z (1 species) |
| Zhuchengceratops - Upper Cretaceous, 70 Ma |