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The Evolution of Australian Biota Question 1: Wegener's Theory: During the 19th and early 20th Centuries, several geologists explored the idea that the continents may have and still are drifting across the Earth's surface. This hypothesis of continental drift was largely developed by German astronomer and meteorologist, Alfred L. Wegener. Wegener suggested that the Earths continents had at one time been joined in two super continents. In 1912 Wegener made the proposal that all the continents were previously one large continent, but then broke apart, and had drifted through the ocean floor to where they are now located. Apart from using the idea that continents fit together like a puzzle, Wegener also used fossil distribution, a similar sequence of rocks at numerous locations, and the apparent wandering of the Earth's polar regions to support his idea. With the help of Alfred L. Wegener's theory much of Australia's geological history can be explained. The puzzle...

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