Europrosopy is defined as a length-breadth ratio of the face lower than 83, hypereuryprosopy as a ratio lower than 79. Thus, euryprosop faces are usually broad. They are found in Lapland and some areas of South Central Europe. Much of the African forest belt has euryprosop populations as well as several Khoisan groups of South Africa. Euryprosopy is also common in Central Asia and sometimes found in North Asia. It occurs in several mountain groups of Indochina and the Sunda Islands as well as much of Australia, New Guinea, and Melanesia. In Native America it is most common in the central parts of the continent.