Last Updated
：2025/12/06
新始生代
Hiragana
しんしせいだい
Proper noun
Japanese Meaning
新始生代は、太古代後期の地質時代区分で、約28億年前から25億年前までの期間を指す。英語の「Neoarchean eon」に対応し、始生代（太古代）の最終区分として位置づけられる。
Easy Japanese Meaning
とてもむかしの地球のじだいのなまえで、今から二十七おく年くらい前のころ
Sense（1）
the Neoarchean eon
（ canonical ）
（ romanization ）
（ hiragana ）
Quizzes for review
See correct answer
新始生代
See correct answer
The Neoarchean eon was a very important period in the history of the Earth.
The Neoarchean eon was a very important period in the history of the Earth.
See correct answer
新始生代は地球の歴史の中で非常に重要な時期でした。
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