Oceanic Discontinuities

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 It might be outdated or ideologically biased.

Oceanic Discontinuities

 

a geographic discontinuity in which broad expanses of ocean lie between areas inhabited by the same land animals. For example, tapirs live in southern Asia and in Central and South America, and alligators are found in southern Asia and in North America. Data on oceanic discontinuities in the distribution of animals were used in developing the theory of continental drift.

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