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
Green Line (TRAX) House Branch, which goes under I-15/I-80 and then briefly runs along the south side of West Andy Avenue to South 300 West. After crossing South 300 West it continues east until about 220 West where it reaches the Union Pacific right-of-way and takes a sharp turn north as it merges with the Blue and Red lines), before entering Central Pointe, which is just south of West 2100 South (SR-201).Central Pointe is the only TRAX station served by the S Line. The S Line platform is situated just southeast of the TRAX platform. (The S Line provides streetcar service east to