: Paléoclimatologie: belemnite

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belemnite

Belemnitida (or the belemnite) is an extinct order of squid-like cephalopods that existed from the Late Triassic to Late Cretaceous. Unlike squid, belemnites had an internal skeleton that made up the cone. Belemnites were an important food source for many Mesozoic marine creatures, both the adults and the planktonic juveniles, and likely played an important role in restructuring marine ecosystems after the Triassic–Jurassic extinction event. The calcitic guard is the most common belemnite remain and can give information on the climate, habitat, and the carbon cycle of the ancient waters they inhabited. (Adapted from: https://en.wikipedia.org/wiki/Belemnitida)

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