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总结
多家媒体引述《Nature》等最新研究称，丹麦地层与化石数据表明，菊石并非在约6600万年前小行星撞击引发的白垩纪末大灭绝中立刻消失，部分种群曾跨越白垩纪—古近纪界线并短暂存活。但在撞击后的持续海洋环境动荡、食物网重组等因素影响下，这些幸存者很快仍走向灭绝。研究为评估大灭绝过程的速度与机制提供了新的化石证据。
正文
These Creatures Survived the Asteroid That Killed the Dinosaurs, But Something Else Took Them Indian Defence Review Ammonites, the ancient creatures that survived the asteroid that killed the dinosaurs, but how? Moneycontrol New Study Says Ammonites Survived the Dinosaur Apocalypse - but Only for a Little While Green Matters Ammonites survived asteroid impact that killed off dinosaurs, new evidence suggests Phys.org Ammonite survival across the Cretaceous-Paleogene boundary confirmed by new data from Denmark Nature
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