Advanced tools and expanded fossil datasets have painted a clearer picture of the eukaryotic diversity of the Proterozoic eon, which has been hard to quantify. The findings show that Earth's ...

Natl Acad. Sci. USA 110, 5357–5362 (2013)State-of-the-art exploration of the redox landscape of the mid-Proterozoic ocean—with important implications for the mechanisms behind the persistently ...

1. Archean-Proterozoic. You should be able to: describe the differences between Archean and Proterozoic rocks, and what they tell us about changes in plate tectonic processes; use what you know about ...

The absence of molecular fossils of crown sterols during the mid-Proterozoic favours the proposal that the LECA appeared later, between 1,200 million and 1,000 million years ago, rather than ...

Earliest animals evolved in the mid to late Proterozoic Eon and lie deep in the fossil record.

Life Story - the Proterozoic era. Discovery. A look at life in the pre-Cambrian era, more than half a billion years ago.