Mainland Australia

Mainland Australia is the main landmass of the Australian continent, excluding the Aru Islands, New Guinea, Tasmania, and other Australian offshore islands. The landmass also constitutes the mainland of the territory governed by the Commonwealth of Australia, and the term, along with continental Australia, can be used in a geographic sense to exclude surrounding continental islands and external territories. Generally, the term is applied to the states of New South Wales, Queensland, South Australia, Victoria, and Western Australia, as well as the Australian Capital Territory, Jervis Bay Territory, and Northern Territory. The term is typically used when referring to the relationship between Tasmania and the other Australian states, in that people not from Tasmania are referred to as mainlanders. Tasmania has been omitted on a number of occasions from maps of Australia, reinforcing the divide between Tasmania and the mainland. The 1982 Commonwealth Games in Brisbane left Tasmania off the map of Australia during the opening ceremony, as did the designs of the Australian Swim Team uniform for the 2014 Commonwealth Games in Glasgow. The land mass covers , about 98.7% of the area of the country of Australia and 1.5% of Earth's surface. It is sometimes described as an island. Its population is about 25.152 million, 98% of Australia's total population. Mainland Australia has a variety of climatic regions, ranging from tropical rainforests and deserts to cool temperature rainforests to snow-covered mountains. It is in these mainland regions that much of Australia's native flora and fauna can be found. Natural history of Australia Early in the Cretaceous Period, 130 million years ago, Australia (and Antarctica) separated from a supercontinent known as Gondwana. Antarctica's separation from Australia began roughly 85 million years ago, at a rate of a few millimetres per year. It took over 30 million years (53 million years ago), toward the end of the Palaeocene epoch, for Australia to fully separate from Antarctica and set course for where we see the two continents today.