Chamita Formation (Middle Brown Unit): Hemphillian, New Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Lagomorpha
- Leporidae
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Hypolagus vetus
(Kellogg 1910)
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= Hypolagus sp.
Dice 1917
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Alroy 2002 | |||||||||
| status unclear, see discussion of H. gidleyi by White 1988 | ||||||||||
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Mammalia
- Megalonychidae
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? Pliometanastes galushai n. sp.
Hirschfeld and Webb 1968
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| synonym of Pliometanastes protistus | ||||||||||
| see Hirschfeld and Webb 1968 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | New Mexico | County: | Rio Arriba |
| Coordinates: | 36.5° North, 107.0° West (view map) | ||||
| Paleocoordinates: | 36.9° North, 105.3° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Neogene | ||
| 10 m.y. bin: | Cenozoic 6 | ||
| *Period: | Tertiary | *Epoch: | Miocene |
| Key time interval: | Hemphillian | ||
| Age range of interval: | 9.40000 - 4.70000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
| Taxonomic list comments:paleomag chron 3An.1n according to MacFadden, but C4n.2n according to Lindsay et al. 1984 | |
Metadata
| Database number: | 19290 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 2000-05-19 00:00:00 | Last modified: | 2009-12-18 12:29:57 |
| Access level: | the public | Released: | 2000-05-19 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 2365. | B. J. MacFadden. 1977. Magnetic polarity stratigraphy of the Chamita Formation stratotype (Mio-Pliocene) of North-central New Mexico. American Journal of Science 200 [J. Alroy/J. Alroy/J. Ju] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] |