supereon
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See also: supereón
English
[edit]Etymology
[edit]Pronunciation
[edit]Noun
[edit]supereon (plural supereons)
- (geology) A time period encompassing more than one eon, principally used to characterize the Precambrian.
- 2015, Charles S. Cockell, Astrobiology: Understanding Life in the Universe, page 254:
- Sometimes the Hadean, Archean and Proterozoic are lumped together in a supereon called the Precambrian.