Late Pliocene, Early Pleistocene Ecologic Changes in the Arctic Ocean Borderland

摘要

The synthesis of ecologic changes in the Arctic Ocean Borderland during the late Pliocene and early Pleistocene draws upon published information for Europe westward across North America to eastern Siberia and for areas to the south where information has a bearing on the interpretation of high-latitude sites. More or less by definition Beringia has never been covered by continental glaciation. The region thus extends eastward almost to the Mackenzie River and its delta in northern Northwest Territories, Canada, the western limit of continental glaciation; the western limits of Beringia are beyond the Kolyma Lowlands of Yakutia but have never been clearly defined.