The Tehuacan survey (and specifically Coxcatlan Cave) came under fire recently, but the best thing to come out of that debate is a clear, updated delineation of the cave deposits by Kent Flannery and Richard MacNeish.
Flannery, Kent V. and Richard S. MacNeish 1997 In defense of the Tehuacan project. Current Anthropology 38(4):660-672.
Fritz, Gayle J. 1994 Are the first American farmers getting younger? Current Anthropology 35(1):305-309.
Long, Austin and Gayle J. Fritz 2001 Validity of AMS dates on maize from the Tehuacan Valley: A comment on MacNeish and Eubanks. Latin American Antiquity 12(1):87-90.
MacNeish, Richard S. and Mary W. Eubanks 2000 Comparative analysis of the Rio Balsas and Tehuacan models for the origin of maize. Latin American Antiquity 11(1):3-20.
Smith, Bruce D. 2005 Reassessing Coxcatlan Cave and the early history of domesticated plants in Mesoamerica. Proceedings of the National Academy of Sciences 102(27):9438-9445.
This glossary entry is part of the Dictionary of Archaeology.