| Rhachiocephalus Temporal range: Late Permian
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Suborder: | †Anomodontia |
| Clade: | †Dicynodontia |
| Family: | †Rhachiocephalidae |
| Genus: | †Rhachiocephalus Seeley, 1898 |
Rhachiocephalus is an extinct genus of dicynodont therapsid.