1. Ancient Middle America Tehuacán University of Minnesota Duluth Tim Roufs Maize God

2. Understanding Physical Anthropology and Archaeology (8th ed), p. 417. Richard S. Mac Neish, Scientific American, 1964.

5. http://www.d.umn.edu/cla/faculty/troufs/anth3618/mastages_handout.html

6. http://www.d.umn.edu/cla/faculty/troufs/anth3618/ma_timeline.html#lithic

12. Richard S. Mac Neish, Scientific American, 1964.

13. 5,000 B.C. 3,000 B.C. 1,000 B.C. 4,000 B.C. A.D. 0 Richard S. Mac Neish, Scientific American, 1964.

14. Wild corn wild pod-pop variety Teosinte Tripsacum Richard S. Mac Neish, Scientific American, 1964.

16. = 100% “seriation”

21. Richard S. Mac Neish, Scientific American, 1964.