Rancho Gerardo (Middle Unit) (Pleistocene of Mexico)

Where: Puebla, Mexico (18.6° N, 97.9° W: paleocoordinates 18.6° N, 97.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pleistocene (2.6 - 0.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: terrestrial; yellow siltstone and sandstone

• "yellowish silt and sand with lenses of rounded and elongated cobbles"

Size class: macrofossils

Primary reference: M. Montellano-Ballesteros. 2002. New Cuvieronius finds from the Pleistocene of central Mexico. Journal of Paleontology 76(3):578-583 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13948: authorized by John Alroy, entered by John Alroy on 05.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Xenarthra - Mylodontidae
Mylodontidae indet. Ameghino 1889 edentate
 Xenarthra - Glyptodontidae
Glyptodontidae indet. Burmeister 1879 glyptodon
 Proboscidea - Gomphotheriidae
Cuvieronius tropicus Cope 1884 gomphothere