Paso del Águila : Late/Upper Miocene, Mexico

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Testudines - Emydidae
cf. Trachemys sp. Agassiz 1857
Mammalia - Perissodactyla - Equidae
Pliohippus potosinus n. sp. Ferrusquía-Villafranca et al. 2014
Mammalia - Ungulata - Camelidae
Camelinae indet. Gray 1821
Mammalia - Ungulata - Cervidae
? Cervidae indet. Gray 1821
see common names

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
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 6
Key time interval:Late/Upper Miocene
Age range of interval:11.60800 - 5.33300 m.y. ago
Age estimate:10.99 ± 0.22 to 7.4 ± 0.31 Ma (Ar/Ar)
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.
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
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]