| A (11 species) |
| Achelousaurus - Late Cretaceous, 74.2 Ma |
| Agujaceratops - Late Cretaceous, 77 Ma |
| Ajkaceratops - Late Cretaceous, Santonian |
| Albalophosaurus - Early Cretaceous |
| Anchiceratops - Late Cretaceous, 72-71 Ma |
| Aquilops - Early Cretaceous, 107 Ma |
| Archaeoceratops - Early Cretaceous, 125 Ma |
| Arrhinoceratops - Early Maastrichtian, 70.6-70 Ma |
| Asiaceratops - Late Cretaceous, 99 Ma |
| Auroraceratops - Early Cretaceous, Aptian |
| Avaceratops - Late Cretaceous, 77 Ma |
| B (3 species) |
| Bagaceratops - Late Cretaceous, 80 Ma |
| Bainoceratops - Unavailable |
| Breviceratops - Unavailable |
| C (5 species) |
| Cerasinops - Late Cretaceous |
| Chaoyangsaurus - Late Jurassic, 148 Ma |
| Chasmosaurus - Late Cretaceous, 76.5-75.5 Ma |
| Coahuilaceratops - Late Cretaceous, 72.5-71.4 Ma |
| Craspedodon - 85 Ma |
| D (0 species) |
| E (2 species) |
| Einiosaurus - Upper Cretaceous, 74.5-74 Ma |
| Eotriceratops - Late Cretaceous, 68-67.6 Ma |
| F (0 species) |
| G (3 species) |
| Gobiceratops - Late Cretaceous |
| Graciliceratops - Late Cretaceous, 90 Ma |
| Gryphoceratops - Late Cretaceous, 83.5 Ma |
| H (1 species) |
| Helioceratops - Middle Cretaceous |
| I (0 species) |
| J (1 species) |
| Judiceratops - Late Cretaceous, 78-77.5 Ma |
| K (1 species) |
| Koreaceratops - Early Cretaceous, 103 Ma |
| L (3 species) |
| Lamaceratops - Late Cretaceous |
| Leptoceratops - Late Cretaceous, 66.8 Ma |
| Liaoceratops - Early Cretaceous, 130 Ma |
| M (6 species) |
| Medusaceratops - Middle Campanian, 77.5 Ma |
| Microceratus - Late Cretaceous, 90 Ma |
| Micropachycephalosaurus - Late Cretaceous, 69.5 Ma |
| Mojoceratops - Late Cretaceous, 76.5-75 Ma |
| Montanoceratops - 70 Ma Early Maastrichtian |
| Mosaiceratops - Late Cretaceous, 94-72 Ma |
| N (2 species) |
| Nedoceratops - Late Cretaceous, 67 Ma |
| Notoceratops - Late Cretaceous |
| O (1 species) |
| Ojoceratops - Late Cretaceous, 68 Ma |
| P (6 species) |
| Pachyrhinosaurus - 73.5-69 Ma |
| Pentaceratops - Late Cretaceous, 75.79-73 Ma |
| Platyceratops - Unavailable |
| Prenoceratops - Late Cretaceous 74.3 Ma |
| Protoceratops - Late Cretaceous, 75-71 Ma |
| Psittacosaurus - Early Cretaceous, 126-101 Ma |
| Q (0 species) |
| R (1 species) |
| Rubeosaurus - Late Cretaceous, 74.6 Ma |
| S (5 species) |
| Serendipaceratops - Early Cretaceous |
| Sinoceratops - Late Cretaceous, 72 Ma |
| Spinops - Late Cretaceous, 76.5 Ma |
| Stenopelix - Early Cretaceous, 127 Ma |
| Styracosaurus - Late Cretaceous, 75.5-75 Ma |
| T (3 species) |
| Tatankaceratops - Late Maastrichtian, 66 Ma |
| Titanoceratops - Late Cretaceous, 74.73-73.55 Ma |
| Triceratops - Late Cretaceous, 68 Ma |
| U (2 species) |
| Udanoceratops - Late Cretaceous, Campanian |
| Unescoceratops - Late Cretaceous, 76.5-75 Ma |
| V (1 species) |
| Vagaceratops - Late Cretaceous, 75 Ma |
| W (0 species) |
| X (2 species) |
| Xenoceratops - Late Cretaceous, 79.5 Ma |
| Xuanhuaceratops - Late Jurassic, 167.7-161.2 Ma |
| Y (2 species) |
| Yamaceratops - Late Cretaceous |
| Yinlong - Late Jurassic, 158 Ma |
| Z (1 species) |
| Zhuchengceratops - Upper Cretaceous, 70 Ma |