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Unformatted text preview: Alfred Wegener (1880‐1930) no9ced con9nental shapes seemed to ﬁt together looked for geological and fossil evience did not know the mechanism “The Origin of Con9nents and Oceans” (1912) coined the name “Pangaea” for a proposed ancient supercon9nent Precambrian Cambrian we now know the mechanism • plate tectonics, worked out in the 1960s Gondwanan Flora and Fauna Pangaea A far more ancient supercon9nent: Rodinia • ~1 billion to ~800 million years ago • Land masses were concentrated in the tropics • Hypothes...
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- Spring '08