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In addition, the AD-period dates, though clearly stratigraphically anomalous, may represent intrusions of later relics of the same primitive corn Benz, ; ms in prepartion. From these, we asked MacNeish to select 12 that he considered to have the best proveniences and relationships to well-dated lev- els.

No evidence of microbiological activity was apparent during the examination.

Erotic massage Apopa were treated with distilled Sex dating Tehuacan. As corn has a relatively short growing season, and is an annual plant, could its brief photosynthetic Sex dating Tehuacan of atmospheric 14C produce anomalous ages not found in plants integrating longer sample times of atmospheric carbon dioxide?

The oldest Sex dating Tehuacan domesticated corn is thus no older than cal BC dendro-calibrated in calendric years.

Histories of Maize in Mesoamerica: Multidisciplinary Approaches.

They were still in the original specimen con- tainers used by Galinat. The relative ages of the oldest specimens in San Marcos and Coxcatlan Caves are consistent with morphological characteristics: those from San Sex dating Tehuacan appear Sex dating Tehuacan primitive.

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RESULTS Table 1 lists the 12 samples, their field Sex dating Tehuacan numbers and stratig- Sex dating Tehuacan positions, as well as the stable isotope results numbers in parenthesis are values assumed for computational purposes and the 14C results. If the dates revealed in this study are correct, and if we have, in fact, dated the earliest corn, then its initial Sex dating Tehuacan occurred to years later than currently believed.

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The Coxcatlan cultural phase, recognized in these caves, contained the earliest corn specimens. Moreover, petrochemical contamination would make the samples appear older than true age. All remnants of cotton were removed.
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