New Evidence for a Possible Paleolithic Occupation of the Eastern North American Continental Shelf at the Last Glacial Maximum

Mastodon remains dated to 22,760 RCYBP were recovered with a bifacial laurel leaf knife from 250 ft below sea level on the outer continental shelf of Virginia. This chapter reports the results of our research concerning this find and an on-going survey of the extensive archaeological collections of the Smithsonian and other repositories including large private collections that are representative of the Chesapeake Bay drainage system. We located additional laurel leaf specimens recovered by watermen working on the continental shelf. The study indicates that these bifaces are not part of the post last glacial maximum (LGM) technologies and, therefore, support an LGM occupation of the continental shelf of North America.