Found 2 'Precambrian' Web Sites.
Web Sites (1 - 2 of 2):
Precambrian
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UCMP Web Time Machine
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- text-only version of this page. Introduction to Geology | Navigating our Geology Wing Phanerozoic Eon (544 mya to present) Cenozoic Era (65 mya to today) Quaternary (1.8 mya to today)
Source/Host: UC Berkeley 
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PALYNOLOGY DEFINITIONS
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- The figures above represent various kinds of palynomorphs. "Palynomorphs" include both plant and animal structures that are microscopic in size (from about 5 µm to about 500 µm), and are composed of compounds that are highly resistan...
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