New Paper Has Bad News for Popular “Oxygen Theory” of the Cambrian Explosion
Cambrian animals, Cambrian Explosion, clades, Darwin's Doubt, David Coppedge, Douglas Erwin, Evolution, evolutionary precursors, Gizmodo, Intelligent Design, James Valentine, oxygen, oxygen theory, oxygen trigger model, oxygenation, paleontologists, paleontology, partial pressure of oxygen, Proceedings of the National Academy of Sciences, The Cambrian Explosion (book)
The technical paper acknowledges that this level of oxygenation, if sustained, would indeed “challenge the view” that oxygen was a trigger for animal evolution. Source