Wallace Line by the Sahul Shelf to New Guinea. The biogeographic boundary known as Lydekker's Line, which separates the eastern edge of Wallacea from the Australian region, has a similar origin to the Wallace line. During ice age glacial advances, when the , both Asia and Australia were united with what are now islands on their respective continental shelves as continuous land masses, but the deep water between those two large continental shelf areas was, for over 50 million years, a barrier that kept the flora and fauna of Australia separated from those of Asia. Wallacea consists of islands that were not
Wallace, Nebraska in the village was $36,771, and the median income for a family was $41,346. Males had a median income of $30,179 versus $19,688 for females. The per capita income for the village was $22,033. About 6.4% of families and 9.5% of the population were below the poverty line, including 18.3% of those under age 18 and none of those age 65 or over. Wallace, Nebraska Wallace is a village in Lincoln County, Nebraska, United States. It is part of the North Platte, Nebraska Micropolitan Statistical Area. The population was 366 at the 2010 census. Wallace was platted in 1887 when