| Deuterosaurus Temporal range: Capitanian
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|---|---|
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| Deuterosaurus biarmicus | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Suborder: | †Dinocephalia |
| Family: | †Deuterosauridae |
| Genus: | †Deuterosaurus Eichwald, 1846 |
| Type species | |
| Deuterosaurus biarmicus Eichwald, 1846
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| Species | |
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Deuterosaurus is an extinct genus of dinocephalian therapsids, one of the non-mammalian synapsids dominating the land during the late Paleozoic.