PRECAMBRIAN EON
(noun)
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Precambrian Eon.
Precambrian Eon - as a noun
The eon following the hadean time and preceding the phanerozoic eon; from about 3,800 million years ago until 544 million years ago
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Example Sentences
"The precambrian eon fossil record is very limited."
"Many scientists study the precambrian eon rocks for clues about Earth's early history."
"The precambrian eon organisms were simple and lacked complex structures."
"The precambrian eon spanned approximately 4 billion years."
"The precambrian eon is divided into three eras: Hadean, Archean, and Proterozoic."
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