Precambrian environment (Introduction)

by David Turell , Thursday, September 27, 2012, 15:54 (4442 days ago)

Changes in oxygen levels and increasing fossil finds in China support the theories about environmental changes leading up to the Cambrian Explosion:-http://phys.org/news/2012-09-extreme-climate-linked-early-animal.html

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Precambrian environment - David Turell, 2012-09-27, 15:54
- Precambrian environment - David Turell, 2013-05-23, 21:29
  - Precambrian environment - dhw, 2013-05-24, 12:52
    - Precambrian environment - David Turell, 2013-05-24, 15:15
      - Precambrian environment - dhw, 2013-05-25, 11:36
        Precambrian environment - David Turell, 2013-05-28, 02:47
        Precambrian environment - David Turell, 2013-10-28, 14:26
        Precambrian environment - dhw, 2013-10-29, 19:48
        Precambrian environment - David Turell, 2013-10-29, 21:46
        Precambrian environment - dhw, 2013-10-30, 18:58
        Precambrian environment - David Turell, 2013-10-31, 17:32
        Precambrian environment - dhw, 2013-11-01, 12:53
        Precambrian environment - David Turell, 2013-11-01, 14:56
        Precambrian environment - dhw, 2013-11-02, 20:09
        Precambrian environment - David Turell, 2013-11-03, 01:08
        Precambrian environment - David Turell, 2013-11-03, 01:09
        Precambrian environment - David Turell, 2015-08-05, 14:39
        Precambrian environment: rangeomorphs - David Turell, 2015-08-05, 22:15

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Precambrian environment (Introduction)