-
nounthe eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago
Parts of precambrian
- "archaeozoic aeon"
- "archean"
- "archean aeon"
- "archean eon"
- "archeozoic"
- "archeozoic eon"
- "proterozoic"
- "proterozoic aeon"
- "proterozoic eon"
- "archaeozoic"