Biological diversification linked to environmental stabilization following the Sturtian Snowball glaciation.

ABSTRACT: The body fossil and biomarker records hint at an increase in biotic complexity between the two Cryogenian Snowball Earth episodes (ca. 661 million to ≤650 million years ago). Oxygen and nutrient availability can promote biotic complexity, but nutrient (particularly phosphorus) and redox dynamics across this interval remain poorly understood. Here, we present high-resolution paleoredox and phosphorus phase association data from multiple globally distributed drill core records through the non-glacial interval. These data are first correlated regionally by litho- and chemostratigraphy, and then calibrated within a series of global chronostratigraphic frameworks. The combined data show that regional differences in postglacial redox stabilization were partly controlled by the intensity of phosp

SUBMITTER: Bowyer FT 

PROVIDER: S-EPMC10456883 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature