Sikuomys
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| Sikuomys Temporal range: Late Cretaceous
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Leptictida |
| Family: | †Gypsonictopidae |
| Genus: | †Sikuomys Eberle, Clemens, Erickson & Druckenmiller, 2023 |
| Type species | |
| †Sikuomys mikros Eberle, Clemens, Erickson & Druckenmiller, 2023
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| Species | |
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Sikuomys is a genus of early eutherian mammals from the Late Cretaceous of Alaska. It is known from a few teeth and part of a jawbone in deposits of Campanian age and, as of 2023[update], is the only known Mesozoic eutherian mammal to have lived north of the then location of the Arctic Circle. Estimated to have weighed between 6 and 18 g (0.2 and 0.6 oz), it was also unusually small for the time, similar in size to a modern shrew. It was likely insectivorous and would probably have used burrows or nests to shelter during the Arctic winter, since it is thought to have been too small to have hibernated or migrated over significant distances.[1]
References
- ^ Eberle, J.J.; Clemens, W.A.; et al. (August 2023). "A new tiny eutherian from the Late Cretaceous of Alaska". Journal of Systematic Palaeontology. 21 (1): 2232359. doi:10.1080/14772019.2023.2232359.
Categories:
- Articles with short description
- Short description matches Wikidata
- Articles with 'species' microformats
- Articles containing potentially dated statements from 2023
- All articles containing potentially dated statements
- Taxonbars desynced from Wikidata
- Taxonbars without primary Wikidata taxon IDs
- Late Cretaceous mammals of North America
- Leptictids
- Fossil taxa described in 2023
- Prehistoric mammal genera
- Paleontology in Alaska