Back Terminocavus Czech Terminocavus sealeyi Spanish Terminocavus French テルミノカヴス Japanese Terminocavus Dutch Terminocavus Portuguese Terminocavus Russian Terminocavus Ukrainian 封頂角龍屬 Chinese
| Terminocavus Temporal range: Late Cretaceous, ~
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| Holotype parietals from the front and back | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Family: | †Ceratopsidae |
| Subfamily: | †Chasmosaurinae |
| Genus: | †Terminocavus Fowler & Freedman Fowler, 2020 |
| Type species | |
| †Terminocavus sealeyi Fowler & Freedman Fowler, 2020
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Terminocavus is a genus of ceratopsid dinosaur from the late Cretaceous Period of what is now North America. The genus contains a single species, the type species Terminocavus sealeyi, known from a parietal and some other associated fragments. The holotype specimen was discovered in the Kirtland Formation of New Mexico in 1997, and was later described and named in a 2020 study. It was similar in anatomy to Pentaceratops and Anchiceratops, which it was closely related to, but had a distinctive heart-shaped upper frill with very narrow notch. It has been hypothesized to form an anagenetic series with several other chasmosaur species.