ABSTRACT
Ten samples of wood charcoal from preceramic levels at Guila Naquitz were submitted for radiocarbon dating. Of the three Zone C dates, two are consistent, while one would appear to be too young. Of the three Zone D dates, once again, two are reasonably consistent while one would appear too young. The six consistent radiocarbon dates from Guila Naquitz make it appear that the Naquitz phase extended roughly through the period between 8750 and 6670 b.c. In very general terms, therefore, the Late Ajuereado phase could be viewed as a time of transition from a Paleoindian to an early Archaic way of life. Zone E of Guila Naquitz produced what appears to be an unfinished Lerma point, one of the tool types linking the Paleoindian and early Archaic periods.
