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. 2001 Feb 13;98(4):2101–2103. doi: 10.1073/pnas.98.4.2101

Table 2.

Phytolith percentages from Guilá Naquitz

Provenience zone (square) Phytolith percentages
Zea mays cob-type Other Poaceae Cucurbitaceae Other
Zone A (E5) 6 94 * *
Zone A (C12) 16 63 17 4
Zone A (E8) 6 67 2 25
Zone B1 (E6) 0 81 11 8
Zone B1 (E9) 0 77 20 3
Zone B3 (D8) 0 75 25 *
Zone B3 (E7) 0 94 6 *
Zone C (E6) 0 83 6 13
Zone C (D8) 0 * * *

In the sample from zone C, square D8, phytoliths occurred infrequently and were not counted. No cob-type phytoliths were observed in this sample, and Cucurbitaceae phytoliths were the most common types noted. 

*

Observed on scans of the slide.