title: Impact theory under fire once more.
authors.forename: Rex
authors.initials: R
authors.lastname: Dalton
mesh_terms: D000818:Animals; D002606:Charcoal / Q000032:analysis / Q000737:chemistry; D053476:Extinction, Biological; D005390:Fires / Q000266:history; D019015:Geologic Sediments / Q000737:chemistry; D049690:History, Ancient; D006801:Humans; D008280:Magnetics; D019110:Meteoroids; D008962:Models, Theoretical; D011058:Pollen; D015203:Reproducibility of Results; D014481:United States
chemical_list: D002606:Charcoal