Springerville: Early/Lower Pleistocene, Arizona
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
- Cervidae
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Cervidae indet.
Gray 1821
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Mammalia
- Antilocapridae
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Antilocapridae indet.
Gray 1866
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Mammalia
- Camelidae
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Camelops sp.
Leidy 1854
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Mammalia
- Perissodactyla
- Equidae
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Equus sp.
Linnaeus 1758
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Mammalia
- Mylodontidae
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Paramylodon harlani
(Owen 1840)
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| (13 measurements) | ||||||||||
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Mammalia
- Megalonychidae
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Megalonyx jeffersonii
(Desmarest 1822)
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Arizona | County: | Apache |
| Coordinates: | 34.3° North, 109.3° West (view map) | ||||
| Paleocoordinates: | 34.4° North, 108.9° West | ||||
| Basis of coordinate: | stated in text | ||||
| Altitude: | 1906 | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Early/Lower Pleistocene | ||
| Age range of interval: | 2.58000 - 0.77400 m.y. ago |
Stratigraphy
| Stratigraphy comments: the basalts creating the gravels "have been dated using K/Ar at 1.67 +/- 0.09 mya (Laughlin et al., 1980)" |
Lithology and environment
| Primary lithology: | unlithified gravel |
| Lithology description: "gravels" | |
| Environment: | lacustrine indet. |
| Geology comments: "The Richville gravels were deposited behind lava basalts, which impounded the Richville reach of the Little Colorado River" and created "a lake" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | survey of museum collection |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Museum of Northern Arizona collection | |
Metadata
| Also known as: | MNA Locality 184-1 | ||
| Database number: | 85145 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 2008-12-02 19:54:26 | Last modified: | 2008-12-17 12:33:48 |
| Access level: | the public | Released: | 2008-12-02 19:54:26 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 28649. | H. G. McDonald, L. D. Agenbroad, and C. Manganaro Haden. 2004. Late Pleistocene mylodont sloth Paramylodon harlani (Mammalia: Xenarthra) from Arizona. Southwestern Naturalist 49(2):229-238 [J. Alroy/J. Alroy] |