Eric O. Callen No description specified. 1-4 (4 Records) Documents Diet As Revealed By Coprolites. In: Science in Archaeology: a Survey of Progress and Research (1969) Dietary Patterns in Mexico Between 6500 B.C. and 1580 A.D. In Man and His Foods (1973) First New World Cereal (1967) Plant Remains in Some Coprolites from Utah (1969)