Last Updated
：2025/12/20
古生代
Hiragana
こせいだい
Proper noun
Japanese Meaning
地質時代区分の一つで、約5億4千万年前から約2億5千万年前までの時代。カンブリア紀からペルム紀までを含む。
Easy Japanese Meaning
とてもむかしのちきゅうのじだいで、おおきなさかなやむしなどがたくさんいたころのなまえ
Chinese (Simplified)
地质时代之一，位于前寒武纪之后、中生代之前 / 约5.41亿年至2.52亿年前的地质时期 / 包含寒武纪至二叠纪的时期
Sense（1）
the Paleozoic
（ canonical ）
（ romanization ）
（ hiragana ）
Quizzes for review
See correct answer
The Paleozoic was a very important period in the history of the Earth.
The Paleozoic was a very important period in the history of the Earth.
See correct answer
古生代は地球の歴史の中で非常に重要な時期でした。
Japanese - English
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