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geologic time scale |
Also found in: Wikipedia | 0.04 sec. |
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geologic time scale [¦jē·ə¦läj·ik ′tīm ‚skāl] (geology) The relative age of various geologic periods and the absolute time intervals. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The geological time scale divides Earth's history into units called -- and its subdivisions, --. It is the spontaneous transition from the prototype worm-shaped or soft-bodied form to complex characteristics within each phylum, and it happened in a blink of an eye on the geological time scale. Given that our local bureaucrats operate on a geological time scale, we need to start looking for a new name and quick, before all the good ones get taken. |
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