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
S Line (Utah Transit Authority) property acquisition was necessary. The integration of the S Line at Central Pointe Station required the addition of a second passenger platform (a side platform) to be built just southeast of the existing island platform for the TRAX lines. Transfer between the two modes of transportation only requires a very short walk between the two platforms, but the S Line platform is only accessible from the southern end of the TRAX platform. Although years in development, the S Line is the first streetcar line to operate in the state of Utah in over 50 years. The initial length of the