Ancient continent which formed in the early Proterozoic. It preceeded Laurasia. Included much of the Canadian Shield and Greenland and NW Scotland. Indexed with countries and continents as applicable. Added to Thesaurus in 1993.
Laurentian Highlands
SN
Not a valid term for GeoRef. Use Canadian Shield or, for the mountains of S Quebec, use Laurentian Mountains as applicable.