what is the precambrian timeline?

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what is the precambrian timeline?

2007-02-20 01:03:04 · 3 answers · asked by michael l 1 in Science & Mathematics ➔ Geography

3 answers

The Precambrian eons are those that predate the Cambrian period. Thus, they are Hadean eon (4500 - 3800 mya), the Archaean eon (3800 - 2500 mya), and the Proterozoic eon (2500 - 542 mya), where mya stands for "millions of years ago." The Cambrian period, part of the Paleozoic era of the (current) Phanerozoic eon, began 542 mya.

2007-02-20 01:19:25 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋

Precambrian Time Line

2016-12-12 06:46:02 · answer #2 · answered by ? 4 · 0⤊ 0⤋

An oxymoron!

2007-02-20 02:59:56 · answer #3 · answered by rico3151 6 · 0⤊ 0⤋