title: Biostratigraphic evidence supports Paleoindian population disruption at approximately 12.9 ka.
authors.forename: James P
authors.initials: JP
authors.lastname: Kennett
authors.forename: Allen
authors.initials: A
authors.lastname: West
mesh_terms: D002170:Canada; D002250:Carbon Radioisotopes / Q000032:analysis / Q000266:history; D049690:History, Ancient; D006801:Humans; D007198:Indians, North American / Q000266:history* / Q000706:statistics & numerical data; D019110:Meteoroids; D010163:Paleontology; D011156:Population Density; D055110:Radiometric Dating / Q000266:history; D014481:United States
chemical_list: D002250:Carbon Radioisotopes