Last Updated
：2025/11/20
Paleoproterozoic
Adjective
not-comparable
Japanese Meaning
地質学における用語で、原生代（Proterozoic）の中の時期を指し、約25億年前から16億年前の期間を表す。
Quizzes for review
(geology) Of a geologic era within the Proterozoic eon from 2,500 to 1,600 million years ago.
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Paleoproterozoic
Paleoproterozoic rock formations preserve evidence of ancient atmospheric oxygenation events.
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Paleoproterozoic rock formations preserve evidence of ancient atmospheric oxygenation events.
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