Not a a valid term for GeoRef. In NW Europe, it is usually applied to the upper Weichselian period including Older Dryas, Allerod, and Younger Dryas. In Britain, it is usually considered upper Devensian. Use specific age term.
Region comprising South America except the Guianas; Central America except Belize; Mexico, Cuba, Puerto Rico, Dominican Republic and some of the islands in the West Indies. Used only when a more specific area term is not given. Added to Thesaurus in 1981.