Figure 6. Horsetail sections from Antelope House (top) often show cut marks from stone knives. The same coprolites that contained horsetail also contained hundreds of thousands of horsetail spores. This has only been seen at Antelope House and is thus evidence for dietary stress. A hackberry seed and a partial fruit (lower left) clearly cannot have offered much nutrition and may have been a starvation food. Prickly pear seeds (lower right) were from fruits eaten when they became available in the fall.
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