| Eocasea Temporal range: Late Carboniferous,
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| Holotype fossil | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | †Caseasauria |
| Family: | †Caseidae |
| Genus: | †Eocasea Reisz & Fröbisch, 2014 |
| Type species | |
| †Eocasea martini Reisz & Fröbisch, 2014
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Eocasea is an extinct genus of caseid synapsids from the Late Pennsylvanian of Kansas. It is known from a single type species, Eocasea martini.