Hansen Bluff TS: Middle Pleistocene, Colorado
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia
- Temnospondyli
- Bufonidae
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Bufo sp.
Laurenti 1768
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Bufo cognatus
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Amphibia
- Temnospondyli
- Pelobatidae
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Scaphiopus bombifrons
Cope 1863
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recombined as Spea bombifrons | |||||||
Amphibia
- Temnospondyli
- Urodela
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Ambystoma tigrinum
(Green 1825)
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Mammalia
- Rodentia
- Sciuridae
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Spermophilus tridecemlineatus
(Mitchell 1821)
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Mammalia
- Rodentia
- Geomyidae
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Geomys sp.
Rafinesque 1817
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Mammalia
- Rodentia
- Cricetidae
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Pitymys meadensis
Hibbard 1944
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= Terricola meadensis
Hibbard 1944
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Alroy 2002 | ||||||
recombined as Microtus meadensis | |||||||
Mammalia
- Lagomorpha
- Leporidae
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Sylvilagus sp.
Gray 1867
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Reptilia
- Iguanidae
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Phrynosoma douglassi
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Reptilia
- Gruiformes
- Rallidae
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Fulica americana
Gmelin 1789
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see common names |
Geography
Country: | United States | State/province: | Colorado | County: | Alamosa |
Coordinates: | 37.4° North, 105.8° West (view map) | ||||
Paleocoordinates: | 37.4° North, 105.8° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Altitude: | 2300 meters | ||||
Geographic resolution: | small collection |
Time
Period: | Quaternary | Epoch: | Pleistocene |
10 m.y. bin: | Cenozoic 6 | *Epoch: | Middle Pleistocene | *Local age/stage: | Late/Upper Irvingtonian |
Key time interval: | Middle Pleistocene | ||
Age range of interval: | 0.78100 - 0.12600 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Lithology and environment
Primary lithology: | sandstone |
Environment: | fine channel fill |
Geology comments: "in stream channels or in small, lake-filled relict channels" |
Taphonomy
Modes of preservation: | body |
Size of fossils: | mesofossils |
Disassociated minor elements: | some |
Collection methods and comments
Collection methods: | bulk,sieve,field collection |
Reason for describing collection: | paleoecologic analysis |
Taxonomic list comments:probably "TS-1" locality of Goodwin 1995a, which yields Cynomys gunnisoni |
Metadata
Also known as: | Alamosa | ||
Database number: | 20370 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
Created: | 1993-02-18 00:00:00 | Last modified: | 2002-12-16 13:14:24 |
Access level: | the public | Released: | 1993-02-18 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
2939. | K. L. Rogers, C. A. Repenning, R. M. Forester, E. E. Larson, S. A. Hall, G. R. Smith, E. Anderson and T. J. Brown. 1985. Middle Pleistocene (late Irvingtonian: Nebraskan) climatic changes in south-central Colorado. National Geograpic Research 1(4):535-563 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] |