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
Line 11 (Shanghai Metro) Line 11 (Shanghai Metro) Line 11 is a northwest-southeast line of the Shanghai Metro network. Since October 2013 Line 11 serves Kunshan city also and it is the second intercity metro in China after the Guangfo Metro, and the first that crosses a provincial boundary. Services run at 5-minute intervals from either or to (though a limited number of peak-hour services originating at Huaqiao terminate early at ). The line is colored brown on system maps. The 1st phase of Line 11, which runs from to , opened on 31 December 2009. A branch line from opened on 29 March