Last Updated：2025/12/07
Sentence
ペルム紀末の火山性大量絶滅（約2億5190万年前）は海洋生態系を一変させ、その結果、後に新たな生物群が台頭するための生態的地位を生み出した。
Quizzes for review
The Permian-Triassic extinction reshaped marine ecosystems and cleared ecological niches that later allowed the rise of new groups.
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The Permian-Triassic extinction reshaped marine ecosystems and cleared ecological niches that later allowed the rise of new groups.
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