Contact: Dolores Piperno
pipernod@si.edu
202-633-1912
Smithsonian Tropical Research Institute

Piperno, Laguna Tuxpan, Iguala Valley

Caption: Cores from Laguna Tuxpan in Mexico's Iguala Valley, provided evidence for maize and squash cultivation along its edges by ~8000 B.P. and for the major dry event between 1800 and 900 B.P.

Credit: Ruth Dickau

Usage Restrictions: Credit: Ruth Dickau

Related news release: Smithsonian scientists connect climate change, origins of agriculture in Mexico