Cottonwood Creek (UNSM Dw-117): Early/Lower Hemingfordian, Nebraska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Rodentia
- Cricetidae
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Yatkolamys edwardsi
Martin and Corner 1980
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Bailey 2004 | |||||||||
Mammalia
- Rodentia
- Heteromyidae
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Stratimus strobeli
Korth et al. 1990
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Korth et al. 1990 | |||||||||
Harrymys magnus
(Wood 1932)
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Bailey 2004 | |||||||||
Mammalia
- Rodentia
- Mylagaulidae
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Mesogaulus paniensis
(Matthew 1902)
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Bailey 2004 | |||||||||
Mammalia
- Lagomorpha
- Ochotonidae
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Oreolagus nebrascensis
McGrew 1941
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Bailey 2004 | |||||||||
Mammalia
- Erinaceidae
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Erinaceidae indet.
Fischer von Waldheim 1817
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Parvericius montanus
Koerner 1940
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Mammalia
- Talpidae
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Scalopoides cf. isodens
Wilson 1960
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omitted by Bailey 2004 | ||||||||||
Mammalia
- Proscalopidae
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Mesoscalops scopelotemos
Reed 1960
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see common names |
Geography
Country: | United States | State/province: | Nebraska | County: | Dawes |
Coordinates: | 42.4° North, 103.0° West (view map) | ||||
Paleocoordinates: | 43.2° North, 99.1° West | ||||
Basis of coordinate: | stated in text |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Burdigalian | 10 m.y. bin: | Cenozoic 5 |
*Period: | Late/Upper Tertiary | *Epoch: | Early/Lower Miocene | *Local age/stage: | Hemingfordian |
Key time interval: | Early/Lower Hemingfordian | ||
Age range of interval: | 18.50000 - 16.30000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Runningwater |
Stratigraphic resolution: | member |
Lithology and environment
Primary lithology: | green unlithified sandstone |
Lithology description: "fine-to-medium-grained, poorly sorted, unconsolidated sand... which ranges in color from tan to grayish green" | |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | mesofossils |
Disassociated major elements: | some |
Disassociated minor elements: | some |
Collection methods and comments
Collection methods: | bulk,sieve,field collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | UNSM |
Collection method comments: "recovered from road cuts... fossils were collected by screen-washing methods" |
Metadata
Database number: | 26019 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | G. Varnham | Research group: | vertebrate |
Created: | 2002-09-30 20:45:50 | Last modified: | 2022-05-04 05:02:30 |
Access level: | the public | Released: | 2002-09-30 20:45:50 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
2718. | G. E. Ostrander. 1986. Insectivora (Mammalia) from the Miocene (Hemingfordian) of western Nebraska. Transactions of the Nebraska Academy of Sciences 14:21-24 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
19303 | B. E. Bailey. 2004. Biostratigraphy and biochronology of early Arikareean through late Hemingfordian small mammal faunas from the Nebraska Panhandle and adjacent areas. Paludicola 4(3):81-113 [J. Alroy/J. Alroy] | |
2152 | 5% 20540 | W. W. Korth, B. E. Bailey, and R. M. Hunt, Jr. 1990. Geomyoid rodents from the early Hemingfordian (Miocene) of Nebraska. Annals of Carnegie Museum 59(1):25-47 [J. Alroy/J. Alroy/M. Carrano] |