Ejido San Lázaro (Pleistocene of Mexico)

Where: Tamaulipas, Mexico (24.6° N, 99.2° W: paleocoordinates 24.6° N, 99.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Rancholabrean (0.3 - 0.0 Ma)

• "Rancholabrean" based on presence of Bison

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; yellow claystone

• "a light yellow clay"

Size class: macrofossils

Collected by R. Delgado

• specimens are in the IGM

Primary reference: V.-H. Reynoso and M. Montellano-Ballesteros. 2004. A new giant turtle of the genus Gopherus (Chelonia: Testudinidae) from the Pleistocene of Tamaulipas, México, and a review of the phylogeny and biogeography of gopher tortoises. Journal of Vertebrate Paleontology 24(4):822-837 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 74498: authorized by John Alroy, entered by John Alroy on 07.08.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Testudines - Testudinidae
Gopherus donlaloi n. sp.
Gopherus donlaloi n. sp. Reynoso and Montellano-Ballesteros 2004 gopher tortoise
Mammalia
 Proboscidea - Elephantidae
Mammuthus sp.
Mammuthus sp. Brookes 1828 mammoth
 Artiodactyla - Bovidae
Bison sp.
Bison sp. Hamilton-Smith 1827 bison
 Perissodactyla - Equidae
Equus conversidens
Equus conversidens Owen 1869 horse
 Cingulata - Glyptodontidae
Glyptotherium sp.
Glyptotherium sp. Osborn 1903 glyptodon