Hyotheridium is a possible Eutherian from the Late Cretaceous (?late Santonian–early Campanian) Djadochta Formation of Mongolia. It also could be a Deltatheriid, although the fossil, a poorly preserved skull with the upper and lower jaws connected in a way that makes them hard to separate and to examine, makes it difficult to determine what it is.[1]
| Hyotheridium Temporal range:
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Genus: | †Hyotheridium Gregory & Simpson, 1926 |
| Species: | †H. dobsoni
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| Binomial name | |
| †Hyotheridium dobsoni Gregory & Simpson, 1926
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References
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- ^ "MESOZOIC MAMMALS; Basal Eutheria Two, an internet directory". Archived from the original on 2011-06-07. Retrieved 2008-05-04.
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