Last Updated：2025/11/28
Sentence
化石化したステファノセラチダ科のアンモナイトは複雑な縫合線の模様を示し、古生物学者が地層の年代を特定するのに役立った。
Quizzes for review
The fossilized stephanoceratid revealed intricate suture patterns that helped paleontologists date the rock layer.
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The fossilized stephanoceratid revealed intricate suture patterns that helped paleontologists date the rock layer.
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stephanoceratid
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