A Basin Redox Transect at the Dawn of Animal Life

• Published in: Earth and Planetary Science Letters
• Main Authors: Sperling, Erik A., Halverson, Galen P., Knoll, Andrew Herbert, Macdonald, Francis Alexander, Johnston, David T
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier BV 2013
• Subjects: Cryogenian; Fifteenmile Group; Canada; oxygen; animals; physiology; Ogilvie; Ogilvie Mountains; Yukon
• Online Access: http://nrs.harvard.edu/urn-3:HUL.InstRepos:12334297; https://doi.org/10.1016/j.epsl.2013.04.003

Multiple eukaryotic clades make their first appearance in the fossil record between ~810 and 715 Ma. Molecular clock studies suggest that the origin of animal multicellularity may have been part of this broader eukaryotic radiation. Animals require oxygen to fuel their metabolism, and low oxygen lev...