Last Updated
：2025/12/07
中始生代
Hiragana
ちゅうしせいだい
Proper noun
Japanese Meaning
地球史における始生代の中期にあたる地質時代区分。約32億年前から28億年前ごろまでを指す。 / 太古代（始生代）のうち、前後の時代と区別される中間の時期。大陸地殻の成長や初期生命の進化が進んだ時代。
Easy Japanese Meaning
およそ三十六億年前から三十二億年前ごろまでのとても古い地球の時代の名前
Sense（1）
the Mesoarchean eon
（ canonical ）
（ romanization ）
（ hiragana ）
Quizzes for review
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中始生代
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The Mesoarchean eon is a part of Earth's history, which lasted from about 3 billion years ago to about 2.8 billion years ago.
The Mesoarchean eon is a part of Earth's history, which lasted from about 3 billion years ago to about 2.8 billion years ago.
See correct answer
中始生代は地球の歴史の一部であり、約30億年前から約28億年前まで続いた。
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