a belemnite

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Definition of a belemnite in English English dictionary: thunderstone
belemnite: An extinct group of Mesozoic marine cephalopod, very similar in many ways to the modern squid and closely related to the modern cuttlefish
belemnite: The belemnites are found in rocks of the Jurassic and Cretaceous ages
belemnite: It is the internal shell of a cephalopod related to the sepia, and belonging to an extinct family
belemnite: A conical calcareous fossil, tapering to a point at the lower extremity, with a conical cavity at the other end, where it is ordinarily broken; but when perfect it contains a small chambered cone, called the phragmocone, prolonged, on one side, into a delicate concave blade; the thunderstone
belemnite: a conical calcareous fossil tapering to a point at one end and with a conical cavity at the other end containing (when unbroken) a small chambered phragmocone from the shell of any of numerous extinct cephalopods of the family Belemnitidae

a belemnite

Hyphenation

a bel·em·nite

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