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Proterozoic eon
Proterozoic eonThe second eon in Earth's history: 2.5 billion to 590 million years ago.Thesaurus| Noun | 1. |  Proterozoic eon - from 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organismsProterozoic, Proterozoic aeonPrecambrian, Precambrian aeon, Precambrian eon, Precambrian period - the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago |
Proterozoic eon
Proterozoic eon: see PrecambrianPrecambrian,
name of a major division of geologic time (see Geologic Timescale, table), from c.5 billion to 570 million years ago. It is now usually divided into the Archean and Proterozoic eons. Precambrian time includes 80% of the earth's history.
..... Click the link for more information. .MedicalSeeProterozoicProterozoic eon
Related to Proterozoic eon: Hadean eon, Archean eon, Paleozoic era, Phanerozoic eonSynonyms for Proterozoic eonnoun from 2,500 to 544 million years agoSynonyms- Proterozoic
- Proterozoic aeon
Related Words- Precambrian
- Precambrian aeon
- Precambrian eon
- Precambrian period
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