Last Updated:2025/11/20

(geology) Of a geologic epoch within the Paleogene period from about 34 to 23 million years ago; marked by the rapid evolution in a warm climate.

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Oligocene

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Source Word

Oligocene

Adjective
not-comparable
Japanese Meaning
オリゴセーン期:古第三紀のパレオゲン期に属し、約3400万年前から2300万年前にかけての地質学上の時代。温暖な気候下で生物の急速な進化が特徴です。
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