Ejido San Lázaro: Rancholabrean, Mexico
collected by R. Delgado

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Testudines - Testudinidae
Gopherus donlaloi n. sp. Reynoso and Montellano-Ballesteros 2004
Mammalia - Proboscidea - Elephantidae
Mammuthus sp. Brookes 1828
Mammalia - Perissodactyla - Equidae
Equus conversidens Owen 1869
Mammalia - Bovidae
Bison sp. Hamilton-Smith 1827
Mammalia - Cingulata - Glyptodontidae
Glyptotherium sp. Osborn 1903
see common names

Geography
Country:Mexico State/province:Tamaulipas
Coordinates: 24.6° North, 99.2° West (view map)
Paleocoordinates:24.6° North, 99.2° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Quaternary Epoch:Pleistocene
10 m.y. bin:Cenozoic 6
Key time interval:Rancholabrean
Age range of interval:0.21000 - 0.01400 m.y. ago
Stratigraphy
Stratigraphic resolution:group of beds
Stratigraphy comments: "Rancholabrean" based on presence of Bison
Lithology and environment
Primary lithology:yellow claystone
Lithology description: "a light yellow clay"
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Articulated whole bodies:some
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Collectors:R. Delgado
Collection method comments: specimens are in the IGM
Metadata
Database number:74498
Authorizer:J. Alroy Enterer:J. Alroy
Research group:vertebrate
Created:2007-08-07 16:21:02 Last modified:2007-08-07 19:21:02
Access level:the public Released:2007-08-07 16:21:01
Creative Commons license:CC BY
Reference information

Primary reference:
24994. 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]