The endosymbiotic origin of mitochondria during eukaryogenesis has long been viewed as
an adaptive response to the oxygenation of Earth's surface environment, presuming a …

Abstract The Paleoproterozoic (2.5–1.6 Ga) Era is a decisive time in Earth and life history.
The paleobiological record (microfossils, stromatolites, biomarkers and isotopes) illustrates …

The~ 1.6 Ga Tirohan Dolomite of the Lower Vindhyan in central India contains phosphatized
stromatolitic microbialites. We report from there uniquely well-preserved fossils interpreted …

The evidence for macroscopic life during the Palaeoproterozoic era (2.5–1.6 Gyr ago) is
controversial,,,,. Except for the nearly 2-Gyr–old coil-shaped fossil Grypania spiralis,, which …

A common view in Himalayan geology is that differences in detrital zircon age distributions
and whole-rock neodymium isotopic compositions (εNd) distinguish lithotectonic zones …

This paper focuses on desaturation due to the microbially mediated dissimilatory reduction
of nitrogen, or denitrification, for mitigating the potential for earthquake-induced soil …

Proterozoic sedimentary successions of India are important archives of both the tectonic
history of the Indian subcontinent and the geochemical evolution of Earth surface processes …

Eukaryotic life has likely existed since the late Paleoproterozoic, yet little is known about its
early diversity and phylogenetic relationships. Organic-walled microfossils (OWMs) with …

The standard molecular clock describes a constant rate of molecular evolution and provides
a powerful framework for evolutionary timescales. Here, we describe the existence and …

Gas release in photic‐zone microbialites can lead to preservable morphological
biosignatures. Here, we investigate the formation and stability of oxygen‐rich bubbles …