Zavacephale
| Zavacephale Temporal range: Early Cretaceous,
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|---|---|
| Replica of the holotype skeleton | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Marginocephalia |
| Clade: | †Pachycephalosauria |
| Genus: | †Zavacephale Chinzorig et al., 2025 |
| Species: | †Z. rinpoche
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| Binomial name | |
| †Zavacephale rinpoche Chinzorig et al., 2025
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Zavacephale (meaning "origin head") is an extinct genus of pachycephalosaurian dinosaurs known from the Early Cretaceous Khuren Dukh Formation of Mongolia. The genus contains a single species, Zavacephale rinpoche, known from a partial articulated skeleton including a nearly complete skull. It is both the oldest definitive pachycephalosaur known, as well as the most complete. Its skull bears a well-developed dome structure, as seen in most members of the clade.