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more about belemnite
belemnite |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Belemnite \Be*lem"nite\, n. [Gr. ? dart, fr ? dart, fr ? to throw: cf F. b['e]lemnite.] (Paleon.) 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. It is the internal shell of a cephalopod related to the sepia, and belonging to an extinct family. The belemnites are found in rocks of the Jurassic and Cretaceous ages. -- {Bel*em*nit"ic}, a. From WordNet r 1.6 [wn]: belemnite n : 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
more about belemnite
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