Complex perishable technologies from the North American Great Basin reveal specialized Late Pleistocene adaptations

Structurally and functionally complex technologies were a defining element of Late Pleistocene societies, but physical examples of them remain extremely rare in the archaeological record because most were made from perishable raw materials. The sparse material record of those myriad technologies limits our ability to formulate nuanced models about this critical period in human history. We present radiocarbon, Zooarchaeology by Mass Spectrometry, and other taxonomic identification data from two of the largest Late Pleistocene perishable assemblages in the world, Cougar Mountain Cave and Paisley Caves, Oregon, US. These data include 66 radiocarbon dates on 55 items made from 15 different plant and animal taxa, including the oldest known physical remains of sewn hide. We provide data on eyed bone needles from four regional sites, showing that they are among the finest bone needles made in the Pleistocene. Our study illuminates the complex interplay of culture, climate, and technology in the Pleistocene.