UA geoarcheologist and colleagues reported at the recent GSA annual meeting on evidence they found of ancient humans butchering elephant-like gomphotheres in northern Mexico about 11,000 years ago. It's the first documentation of humans in North America encountering those animals, which were thought to be nearly extinct by the time humans arrived. [right, Platybeladon descendent of gomphothere, from China. Credit Wikipedia]
Ref: GEOARCHAEOLOGY OF EL FIN DEL MUNDO, A CLOVIS SITE IN SONORA, MEXICO
HOLLIDAY, Vance T., Geosciences, University of Arizona, Tucson, AZ 85721, vthollid@email.arizona.edu, GAINES, Edmund P., Anthropology, University of Arizona, Tucson, AZ 85721, and SANCHEZ-MIRANDA, Guadalupe, Subdirectora de Laboratorios, Instituto Nacional de Antropologia e Historia, Moneda 16, Col. Centro, Mexico City, 06060, Mexico
http://gsa.confex.com/gsa/2009AM/finalprogram/abstract_160955.htm