The Proterozoic Eon, spanning from 2,500 million to 539 million years ago, marked a transformative chapter in Earth's history ...

If all the world's a stage and all the species merely players, then their exits and entrances can be found in the rock record ...

The Proterozoic Eon is also called the Cryptozoic ("age of hidden life"). About 2.5 billion years ago, enough shield rock had formed to start recognizable geologic processes such as plate tectonics.

Australian microbe research is helping improve our understanding of the potential for life in extreme environments, offering ...

With this new study, the chart of life now includes life forms from the Proterozoic Eon, 2,500 million to 539 million years ago. Proterozoic life was generally smaller and squishier ...

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 ...

But the new model shows oxygen levels there may have been unreliable during the mid to late Proterozoic Eon. Rob the rich. Earliest metazoans, the term for multicellular beings that are animals, ...

Right between those active mountain-forming eras, crustal thickness plummeted through the Proterozoic eon (2.5 billion to 0.5 billion years ago), reaching a low during Earth's "middle age." ...

In a 2021 study, scientists tried to reconstruct the oxygen levels on Earth more than 2 billion years ago during the Proterozoic Eon. This time period, ...