Archaeology: blast in the past?
Dalton
Rex
R
D000818:Animals; D001106:Archaeology; D002980:Climate; D004641:Emigration and Immigration; D053476:Extinction, Biological; D019015:Geologic Sediments / Q000737:chemistry; D049690:History, Ancient; D006801:Humans; D046448:Ice Cover; D019110:Meteoroids; D008962:Models, Theoretical; D009656:North America; D013696:Temperature; D013997:Time Factors