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 A (EuskoTran) the existent one with the neighborhoods of Zorrotza and Zorrotzaure. Line A (EuskoTran) The Line A of Euskotren Tranbia, also known simply as Bilbao's Tram is a tramway system in Bilbao, Spain which began operation in December 2002. It is one of the two light rail tram lines operated by Euskotren Tranbia in the Basque Country, the other one being Vitoria-Gasteiz's tram. The service is operated by Euskotren Tranbia, part of Eusko Trenbideak. Bilbao's Tram, or Line A (map icon ), serves twelve stations, several of them with interchanges and connections with Metro Bilbao, EuskoTren and Cercanías Bilbao. The factor