Calvarius
| Calvarius Temporal range: Late Cretaceous (Maastrichtian), | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Ornithopoda |
| Clade: | †Styracosterna |
| Genus: | †Calvarius Prieto-Márquez & Sellés, 2023 |
| Species: | †C. rapidus |
| Binomial name | |
| †Calvarius rapidus Prieto-Márquez & Sellés, 2023 | |
Calvarius (meaning "suffering") is an extinct genus of styracosternan ornithopod from the Late Cretaceous (Maastrichtian age) Talarn Formation of Spain. The genus contains a single species, Calvarius rapidus, known from a single metatarsal. The slender morphology of this bone may indicate Calvarius had a cursorial (adapted to run) ecology, in contrast to its slower-moving relatives.