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Marsupials become the dominant group of mammals.
While three types of mammals exist in Australia, marsupials have become the dominant type, unlike in the rest of the world where placental mammals are most common. The third type of mammals is even more distinctive and uniquely Australian: monotremes, egg-laying mammals, whose two representatives are the echidna and the platypus. Both species inhabit the CERRA region.
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After breaking off from Antarctica 45 Mill years ago, Australia remained an isolated continent for the next 30 Mill years. No other continent remained isolated for such a long period in the known history of plate tectonics.
15 Mill years ago, Australia crashed into the southern edge of the Asian plate, and an exchange of plants and animals began. The
Austral-Asian rainforest
evolves in Australia.
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The eucalypts evolve
This tree genus is perfectly adapted to the increasingly dry and fired continent and is virtually unique to Australia. There are more than 700 different eucalypt species known today.
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