Paso del Águila (Miocene of Mexico)

Where: San Luis Potosí, Mexico (22.3° N, 100.7° W: paleocoordinates 22.6° N, 99.1° W)

• coordinate stated in text

When: San Nicolás Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

Environment/lithology: terrestrial; poorly lithified, fine-grained, calcareous, cherty/siliceous sandstone

• 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.

Size class: macrofossils

Primary reference: 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]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 173691: authorized by Jonathan Marcot, entered by Jonathan Marcot on 10.10.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines - Panemydidae
cf. Trachemys sp. Agassiz 1857 slider
IGM-7972
Mammalia
 Perissodactyla - Equidae
Pliohippus potosinus n. sp. Ferrusquía-Villafranca et al. 2014 horse
IGM-7973
 Ungulata - Camelidae
Camelinae indet. Gray 1821 camel
IGM-7974
 Ungulata - Cervidae
? Cervidae indet. Gray 1821 deer
IGM-7975