Ontology highlight
ABSTRACT:
SUBMITTER: Zazula GD
PROVIDER: S-EPMC4284604 | biostudies-literature | 2014 Dec
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20141201 52
Existing radiocarbon ((14)C) dates on American mastodon (Mammut americanum) fossils from eastern Beringia (Alaska and Yukon) have been interpreted as evidence they inhabited the Arctic and Subarctic during Pleistocene full-glacial times (∼ 18,000 (14)C years B.P.). However, this chronology is inconsistent with inferred habitat preferences of mastodons and correlative paleoecological evidence. To establish a last appearance date (LAD) for M. americanum regionally, we obtained 53 new (14)C dates o ...[more]