Gregg Ranch Site: Late/Upper Pleistocene, Oklahoma
collected by Dalquest and Baskin 1990
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Camelidae
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Camelops sp.
Leidy 1854
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1 specimen | |||||||||
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Mammalia
- Soricidae
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Sorex palustris
Richardson 1828
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1 specimen | |||||||||
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Mammalia
- Rodentia
- Cricetidae
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Ondatra zibethicus
(Linnaeus 1766)
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1 specimen | |||||||||
| (1 measurement) | ||||||||||
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Microtus pennsylvanicus
(Ord 1815)
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12 specimens | |||||||||
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Mammalia
- Rodentia
- Sciuridae
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Spermophilus franklinii
(Sabine 1822)
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4 specimens | |||||||||
| recombined as Poliocitellus franklinii | ||||||||||
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Tamias striatus
(Linnaeus 1758)
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1 specimen | |||||||||
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Cynomys ludovicianus
(Ord 1815)
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1 specimen | |||||||||
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Mammalia
- Rodentia
- Geomyidae
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Geomys bursarius
(Shaw 1800)
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3 specimens | |||||||||
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Thomomys talpoides
(Richardson 1828)
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1 specimen | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Oklahoma | County: | Beaver |
| Coordinates: | 36.8° North, 100.7° West (view map) | ||||
| Paleocoordinates: | 36.8° North, 100.7° 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: | 11630 ± 90 YBP (14C) |
Stratigraphy
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: "shell from [this site] was dated... (1990) 11,630 +/- 90 YBP" | |||||
Lithology and environment
| Primary lithology: | claystone |
| Secondary lithology: | sandstone |
| Lithology description: deposits in general area consist of "Irregularly stratified dark clay, sand and gravel" | |
| Environment: | fluvial-lacustrine indet. |
| Glacial or sequence phase: | late glacial |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection methods: | bulk,sieve,field collection | ||
| Reason for describing collection: | paleoecologic analysis | ||
| Collectors: | Dalquest and Baskin | Collection dates: | 1990 |
Metadata
| Also known as: | Elm Creek | ||
| Database number: | 74145 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 2007-07-24 21:53:39 | Last modified: | 2010-01-14 17:25:15 |
| Access level: | the public | Released: | 2007-07-24 21:53:39 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 1316. | W. W. Dalquest and J. A. Baskin. 1992. Mammals of the Elm Creek Local Fauna, Late Pleistocene of Beaver County, Oklahoma. American Midland Naturalist 127:13-20 [J. Alroy/J. Alroy/J. Alroy] |