Belemnite Fossil
Belemnite Fossil
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Belemnites were marine cephalopods, closely related to modern squids and cuttlefish, that lived during the Mesozoic Era, from 240 to 66 million years ago.
Belemnites had a streamlined, elongated body with a conical, pointed guard made of dense calcitic material. In addition to their ten arms lined with hundreds of small hooks, they were also equipped with well-developed eyes and jet propulsion capabilities, which made belemnites effective predators that likely fed on small fish and marine invertebrates.
Fossils of belemnites, such as this guard specimen, are commonly found in Mesozoic marine sediments and serve as valuable index fossils for dating and correlating geological strata. These creatures, along with other marine invertebrates such as ammonites, went extinct during the Cretaceous-Paleogene (K-Pg) mass extinction event around 66 million years ago.
Belemnite fossil size: .75"-1"
