The impact would have vaporized sulfate-rich rocks, releasing massive quantities of sulfur dioxide into the air. Their reliance on a healthy, sunlit ocean made them a canary in the coal mine, and they perished as the ecosystem they dominated collapsed.
Ammonites Extinction: Reproduction and Vulnerability
Their reign began in the Devonian period and lasted through the Jurassic and Cretaceous, creating a fossil record so rich they became iconic markers for geological time. Ammonites, which relied on building and maintaining their intricate calcium carbonate shells, would have been exceptionally vulnerable to this acidification.
This was not a gradual decline but a mass extinction triggered by a combination of severe environmental shocks. This strategy, while successful for dispersal, made them completely dependent on the health of the planktonic ecosystem, which was the first to collapse during the impact winter.
Ammonites Extinction Reproduction Vulnerability
The ammonites' specialization and intricate life cycle, which was finely tuned for the stable and productive Cretaceous seas, left them ill-prepared for the sudden, multi-front assault of the K-Pg event. The impact would have unleashed an energy release far beyond any human-made explosion, hurling vast amounts of debris into the atmosphere and causing immediate, catastrophic devastation at the impact site.
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