Precambrian Era
Corresponds to precambrian x rocks of older. Precambrian era encyclopedia article the columbia encyclopedia, sixth edition, 2004. Most of the continents have a large exposed area of hard, crystalline precambrian rock. The precambrian era is earths first era of time. Com precambrian era comparison table precambrian era concept from the astronomy oil painting of precambrian era created by paleoartist josef moravec. Read precambrian era at questia library. This old, but still common term was originally used to refer to the whole period of earths. Paleoproterozoic: oldest era of the proterozoic eon, 16002500 ma. Precambrian era precambrian name of a major division of geologic time see geologic timescale, table, from c. It began with the creation of the earth around 4. Precambrian era original oil painting by josef moravec. 5 billion to 570 million years ago. Its boundary with the succeeding cambrian period marks the. Information on excavations worldwide can. |
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