Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …

Remnants of a Neoproterozoic glaciation in east central Brazil are represented by thin
diamictite layers (Jequitaí Formation and correlative units), locally overlying striated …

Background Next-generation sequencing has provided a wealth of plastid genome
sequence data from an increasingly diverse set of green plants (Viridiplantae). Although …

Dating the tree of life is a core endeavor in evolutionary biology. Rates of evolution are
fundamental to nearly every evolutionary model and process. Rates need dates. There is …

Abstract The Ediacaran Shuram carbon isotope excursion (CIE) follows the regional
Gaskiers glaciation and occurs before the appearance of macroscopic animal fossils …

Chemostratigraphy has diverse applications to investigating the rock record, such as
reconstructing paleoenvironments, determining the tectonic setting of sedimentary basins …

Chlorophytes (representing a clade within the Viridiplantae and a sister group of the
Streptophyta) probably dominated marine export bioproductivity and played a key role in …

The limited availability and low resolution of biostratigraphic and radiometric data in the
Precambrian necessitate using marine chemostratigraphy to correlate and integrate the …

Abstract The Otavi Group is a Neoproterozoic carbonate‐dominated succession up to 4 km
thick, which blankets the southern promontory of the Congo craton in northern Namibia. This …

Eukaryotic life expanded during the Proterozoic eon, 2.5 to 0.542 billion years ago, against a
background of fluctuating ocean chemistry,,. After about 1.8 billion years ago, the global …