Cambrian Explosion: role of oxygen (Introduction)

by David Turell @, Wednesday, February 19, 2014, 18:47 (2229 days ago) @ David Turell

Nature has an article on oxygen levels. Paywalled. It seems they can measure anceint levels:

http://www.nature.com/nature/journal/v506/n7488/full/nature13068.html?WT.ec_id=NATURE-2...


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