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. 2001 Jul 31;98(17):10017–10022. doi: 10.1073/pnas.171305898

Figure 5.

Figure 5

The arrows indicate the spread of Levallois point makers eastward across the northern edge of the Old World between 200,000 and 170,000 years ago; the expansion from Southeast Asia to New Guinea and Australia 60,000 years ago; the spread to the northernmost portions of the Old World and the initial entry into the New World 15,000 years ago; and population movements at both the western and eastern edges of the Old World and into the New World after the development of agriculture after the end of the Pleistocene.