Paso del Águila : Late/Upper Miocene, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudines
- Emydidae
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cf. Trachemys sp.
Agassiz 1857
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| IGM-7972 | ||||||||||
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Mammalia
- Cervidae
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? Cervidae indet.
Gray 1821
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| IGM-7975 | ||||||||||
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Mammalia
- Camelidae
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Camelinae indet.
Gray 1821
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| IGM-7974 | ||||||||||
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Mammalia
- Perissodactyla
- Equidae
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Pliohippus potosinus n. sp.
Ferrusquía-Villafranca et al. 2014
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| IGM-7973 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | San Luis Potosí |
| Coordinates: | 22.3° North, 100.7° West (view map) | ||
| Paleocoordinates: | 22.6° North, 99.1° West | ||
| Basis of coordinate: | stated in text |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Late/Upper Miocene | ||
| Age range of interval: | 11.63000 - 5.33300 m.y. ago | ||
| Age estimate: | 10.99 ± 0.22 to 7.4 ± 0.31 Ma (Ar/Ar) |
Stratigraphy
| Formation: | San Nicolás |
Lithology and environment
| Primary lithology: | planar lamination,fine poorly lithified calcareous,cherty/siliceous sandstone |
| Includes fossils? | Y |
| Lithology description: The specimen was collected from a 1.2 mm thick, gently dipping (128 NE) succession of very pale orange (10YR 8/2), fine-grained, moderately indurated (CaCO3-cemented), immature, planar- bedded, orthoclass-bearing chertiferous calcilithitic sandstone set in thin to medium thick strata, alternating with like-colored, clayey siltstone and silty claystone set in thin strata. | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 173691 | ||
| Authorizer: | J. Marcot | Enterer: | J. Marcot | Research group: | vertebrate |
| Created: | 2015-10-10 17:49:59 | Last modified: | 2015-10-10 17:49:59 |
| Access level: | the public | Released: | 2015-10-10 17:49:59 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 56621. | I. Ferrusquía-Villafranca, J. E. Ruiz-González, E. Martínez-Hernández, J. R. Torres-Hernández, and G. Woolrich-Piña. 2014. A new Miocene local fauna from the Sierra Madre Oriental at San Luis Potosí, Central-East Mexico, and its paleontologic significance. Geobios 47(4):199-220 [J. Marcot/J. Marcot] |