Data from two coprolite analysis.

The first analysis assessed the presence/absence of plant taxa. The second analysis measured the pollen concentration of a subset of samples analyzed originally. The first columns show the presence/absence results from Vinton's analysis of starch diversity for maize (Zea mays), yuca (Manihot esculenta), oca (Oxalis crenata), chuñ'u (Solanum tuberosum) 17. The last 4 columns present the data from 200 starch grains counts focusing on maize results only. Other starch types including yuca, maize, quinoa, oca and unknown types were encountered but are not presented in this table. Concentration refers to the calculated numbers of starch granules per gram of coprolite. Pristine maize refers to starch granules that show now evidence of preparation by fermentation or cooking. Altered maize refers to starch granules that show erosion of the internal or external surface consistent with effect of fermentation or cooking.