Where: Mexico, Mexico (19.6° N, 99.7° W: paleocoordinates 19.6° N, 99.7° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Late/Upper Pleistocene (0.1 - 0.0 Ma)
• in a "65 cm" thick bed "indisputably within a Pleistocene level equivalent to the lower part of the Upper Becerra formation"
• bed-level stratigraphic resolution
Environment/lithology: lacustrine; poorly lithified, fine-grained, shelly/skeletal, green, argillaceous sandstone
•clearly poorly lithified based on photos
Size class: macrofossils
• believed to be a kill site and includes six artifacts: a "Scottsbluff type" projectile point, two scrapers, two flake knives, and a blade
•mostly complete, closely associated and partially articulated skeleton although one femur was "isolated from the rest of the skeleton by more than 2 m" and "most of the skull and tusks had been destroyed in the ditch operation"
Preservation: anthropogenic
Collected by L. Avelayra, M. Maldonado-Koerdell, A. Romano in 1950, 1952
Collection methods: salvage, quarrying,
• apparently reposited in the Instituto Nacional de Antropologia e Historia
•discovered by "workers opening an irrigation ditch" in 1950 and excavated by the authors in 1952
Primary reference: L. Aveleyra Arroyo de Anda and M. Maldonado-Koerdell. 1953. Association of artifacts with mammoth in the Valley of Mexico. American Antiquity 18(4):332-340 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: archaeological analysis
PaleoDB collection 93639: authorized by John Alroy, entered by John Alroy on 26.01.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
"Mammuthus (Archidiskodon) imperator" = Mammuthus columbi
"Mammuthus (Archidiskodon) imperator" = Mammuthus columbi Falconer 1857 imperial mammoth | |
Gastropoda | |
Physa sp. Draparnaud 1801 snail | |
Helisoma sp. Swainson 1940 snail | |
Succinea sp. Draparnaud 1801 amber snail | |
Paludestrina sp. d'Orbigny 1839 snail | |
Limnaea | |
Limnaea sp. Lamarck 1799 |