Rebecca Lewis

Rebecca Lewis

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Rebecca Lewis
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An image of the Burgess Shale environment as it might have looked 505 million years ago...

An image of the Burgess Shale environment as it might have looked 505 million years ago.

Cambrian Period

The "Cambrian Explosion" refers to the sudden appearance in the fossil record of complex animals with mineralized skeletal remains. It may represent the most important evolutionary event in the history of life on Earth.

timeline in million years ago that links to a short reading. However: oldest is on top : (

The Ediacara Hills in the Flinders Ranges have given their name to the Ediacaran – the geological period when the first clearly multicellular life appears in the fossil record. It is the only geological period defined by an Australian site.

Animals and plants from the Ediacarian period

New study links gradual increase of oxygen over 100 million years to an explosion of life on Earth around 580 million years ago.

The giant short-faced kangaroo must have made quite a thud as it bounded through the outback tens of thousands of years ago.

The giant short-faced kangaroo must have made quite a thud as it bounded through the outback tens of thousands of years ago.

An artists impression of Australias fauna 20 million years ago. (Credit: Dorothy Dunphy)

An artists impression of Australias fauna 20 million years ago.

Time: 25 - 5 million years ago, from the Chattian age of the Oligocene Epoch of the Paleogene period to the Messinian age of the Miocene Epoch of the Neogene Period, Cenozoic Era, Phanerozoic Eon

The Cenozoic Era is the most recent of the three major subdivisions of animal history. The other two are the Mesozoic and Paleozoic Eras.

by Dorothy Dunphy

by Dorothy Dunphy