Ontology highlight
ABSTRACT:
SUBMITTER: Tostevin R
PROVIDER: S-EPMC5036156 | biostudies-literature | 2016 Sep
REPOSITORIES: biostudies-literature
Nature communications 20160923
The oceans at the start of the Neoproterozoic Era (1,000-541 million years ago, Ma) were dominantly anoxic, but may have become progressively oxygenated, coincident with the rise of animal life. However, the control that oxygen exerted on the development of early animal ecosystems remains unclear, as previous research has focussed on the identification of fully anoxic or oxic conditions, rather than intermediate redox levels. Here we report anomalous cerium enrichments preserved in carbonate roc ...[more]