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1. Neoproterozoic: The Neoproterozoic Era is the unit of geologic time from 1 billion to 538.8 million years ago. It is the last era of the Precambrian Supereon and the Proterozoic Eon; it is subdivided into the Tonian, Cryogenian, and Ediacaran ... (Earth) [100%] 2023-11-08 [Neoproterozoic] [Geological eras]...
2. Neoproterozoic: The Neoproterozoic is the terminal era of the Proterozoic eon (or informally, the Precambrian) extending from about 1,000 million years ago (mya) at the end of the Mesoproterozoic to 542 mya at the beginning of the Cambrian of the ... [100%] 2023-02-04
3. Neoproterozoic oxygenation event: The Neoproterozoic Oxygenation Event (NOE), also called the Second Great Oxidation Event (the first having occurred during the Palaeoproterozoic), was a time interval between around 850 and 540 million years ago which saw a very significant increase in oxygen levels ... (Earth) [57%] 2023-11-26 [Origin of life] [Oxygen]...
4. Neoproterozoic oxygenation event: The Neoproterozoic Oxygenation Event (NOE), also called the Second Great Oxidation Event (the first having occurred during the Palaeoproterozoic), was a time interval between around 850 and 540 million years ago which saw a very significant increase in oxygen levels ... (Neoproterozoic surge in atmospheric oxygen) [57%] 2024-02-06 [Neoproterozoic events] [Origin of life]...