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
Cyrtostachys renda from harvest through implementing legislation. In 2000, the IUCN removed "Cyrtostachys renda" from its list of protected species. Cyrtostachys renda Cyrtostachys renda, also known by the common names red sealing wax palm and lipstick palm, is a palm that is native to Thailand, Malaysia, Sumatra and Borneo in Indonesia. It is the only species of the genus "Cyrtostachys" that can be found to the west of the Wallace Line, the faunal boundary separating the ecozones of Asia and Wallacea. "Cyrtostachys renda"s name is derived from several words: the Greek prefix κυρτό- ("cyrto-") meaning bent or curved, the Greek word σταχυς