La Pantera I: Blancan, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Perissodactyla
- Equidae
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Equus simplicidens
Cope 1892
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| recombined as Plesippus simplicidens | |||||||
| see common names | |||||||
Geography
| Country: | Mexico | State/province: | Guanajuato |
| Coordinates: | 21.1° North, 100.8° West (view map) | ||
| Paleocoordinates: | 21.2° North, 100.2° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Blancan |
| Age range of interval: | 4.70000 - 1.40000 m.y. ago |
Stratigraphy
| Formation: | Rancho Viejo Beds | ||||
| Local section: | La Rinconada | Local bed: | 2 | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: correlated with chron C3n.1r | |||||
Lithology and environment
| Primary lithology: | gray,green,white poorly lithified silty,sandy claystone |
| Lithology description: "The sedimentary and volcaniclastic Rancho Viejo Beds are green to gray to white, weakly indurated, friable, clays and silty to sandy clays, with variable sand, gravel, and tuffaceous components." | |
| Environment: | fluvial indet. |
| Geology comments: the beds "probably were deposited as point bar sequences in a meandering river channel and as adjacent floodplain deposits" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Also known as: | GTO-12A | ||
| Database number: | 70111 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
| Created: | 2007-03-17 14:54:24 | Last modified: | 2007-03-17 16:54:24 |
| Access level: | the public | Released: | 2007-03-17 14:54:22 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 23536. | J. J. Flynn, B. J. Kowallis, C. Nuñez, O. Carranza-Castañeda, W. E. Miller, C. C. Swisher, III, and E. Lindsay. 2005. Geochronology of Hemphillian-Blancan aged strata, Guanajuato, Mexico, and implications for the timing of the Great American Biotic Interchange. Journal of Geology 113:287-307 [J. Alroy/J. Alroy/M. Uhen] |