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 ...

Recognizing the likelihood of a more redox stratified mid-Proterozoic ocean was a major ... it is possible to estimate the global redox landscape (percentage of various seafloor redox states ...

157: this is what you need to know about Archean processes. p. 164-168: Most of what you need to know about Proterozoic rocks is here. What kind of sedimentary rocks are found in the Proterozoic? What ...

For 640 million years of the mid-Proterozoic era ... whereas crown steroids progressively took over the landscape of aromatic steroids. The Tonian is already considered a key interval of Earth ...

Earliest animals evolved in the mid to late Proterozoic Eon and lie deep in the fossil record. Please give special attention to the photo credit, as it is from a participating researcher not from ...

Presenter Martin Redfern begins an exploration of some of the key periods in the early history of life on Earth. The programme looks at the Proterozoic era when bacteria ruled the planet.