List of Periods in The Proterozoic Eon
List is ordered from youngest to oldest and subdivided based on era.
Neoproterozoic
- Ediacaran
- Cryogenian
- Tonian
Mesoproterozoic
- Stenian
- Ectasian
- Calymmian
Paleoproterozoic
- Statherian
- Orosirian
- Rhyacian
- Siderian
Read more about this topic: Epoch (geology)
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—Janet Frame (b. 1924)
“Every morning I woke in dread, waiting for the day nurse to go on her rounds and announce from the list of names in her hand whether or not I was for shock treatment, the new and fashionable means of quieting people and of making them realize that orders are to be obeyed and floors are to be polished without anyone protesting and faces are to be made to be fixed into smiles and weeping is a crime.”
—Janet Frame (b. 1924)
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—Henry David Thoreau (1817–1862)