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| | Timerock Fossils, Minerals & Crystals - Australia - Cryptozoic |
 | | This is an immense period of time, which saw the land and water began to form, during periods of heating and cooling. |
 | | Previously, no traces were found of life from this period, and it was called Cryptozoic, meaning "hidden" life. |
 | | A most significant development during the Cryptozoic era was the development of cells with a nucleus, which meant that genetic information, DNA, was then capable of transmitting from one generation to the next. |
| www.timerock.com /timerock/library/fossils/australia_precambrian.htm (280 words) |
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