Ikpikpuk River Arctodus Site: Late/Upper Pleistocene, Alaska
collected by A. V. Morgan 1979
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Proboscidea
- Elephantidae
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Mammuthus sp.
Brookes 1828
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Mammalia
- Carnivora
- Ursidae
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Arctodus simus
(Cope 1879)
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Alaska |
| Coordinates: | 69.7° North, 154.9° West (view map) | ||
| Paleocoordinates: | 69.7° North, 154.9° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | small collection |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| Stage: | Late/Upper Pleistocene | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Late/Upper Pleistocene | ||
| Age range of interval: | 0.12900 - 0.01170 m.y. ago | ||
| Age estimate: | 27190 ± 280 YBP (14C) |
Stratigraphy
| Stratigraphy comments: "A radiocarbon age of 27 190 +/- 280 BP... was obtained on the collagen fraction of a 1060 mg sample of [Arctodus humerus] shaft wall" |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | fluvial indet. |
| Glacial or sequence phase: | high glacial |
| Geology comments: "Pleistocene fluvial valley-fill deposits" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (float),field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | ROM | ||
| Collectors: | A. V. Morgan | Collection dates: | 1979 |
Metadata
| Database number: | 93341 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
| Created: | 2010-01-14 20:53:28 | Last modified: | 2010-01-14 22:53:28 |
| Access level: | the public | Released: | 2010-01-14 20:53:28 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 31583. | C. S. Churcher, A. V. Morgan, and L. D. Carter. 1993. Arctodus simus from the Alaskan Arctic Slope. Canadian Journal of Earth Sciences 30(5):1007-1013 [J. Alroy/J. Alroy] |