Sonoran Subregion

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Sonoran Subregion

 

a subregion of the zoogeographic Nearctic Region of land. The Sonoran subregion is sometimes divided into the Western American and Eastern American subregions.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.