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, California versus $22,308 for females. The per capita income for the CDP was $26,895. None of the population or families were below the poverty line. In the state legislature, Wallace is in , and . Federally, Wallace is in . Wallace, California Wallace is a census-designated place (CDP) at the far west edge of Calaveras County, California, United States on State Route 12. The population was 403 at the 2010 census, up from 220 at the 2000 census. On the 1883 map of the town site is the name of the surveyor, John Herbert Wallace. It has been widely assumed that