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The period between roughly 45,000 and 30,000 years ago witnessed several critical events in human evolutionary history, among them the appearance and elaboration of Upper Paleolithic technologies, the disappearance of archaic hominid species, and the apparent ascendance of anatomically modern humans. Among the many novel features of the Upper Paleolithic, it is the sudden ubiquity of blade technologies beginning approximately 45,000 years ago that appears to signal significant behavioral change (Bar-Yosef and Kuhn 1999: 333). This increasing reliance on blade technologies is now commonly referred to as the Initial Upper Paleolithic (Bar-Yosef and Kuhn 1999, Kuhn, Stiner, and Guleç 1999). Throughout western Eurasia there appear to be common technological trends defining this phase, including (1) blade production from cores combining elements of both Middle and Upper Paleolithic …