Crossword clues for belemnite
The Collaborative International Dictionary
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.
Wiktionary
n. (context paleontology English) An extinct order ''(taxlink Belemnitida order noshow=1)'' of Mesozoic marine cephalopod, very similar in many ways to the modern squid and closely related to the modern cuttlefish.
WordNet
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
Usage examples of "belemnite".
The belemnite, it turned out, had been discovered four years earlier by an amateur naturalist named Chaning Pearce, and the discovery had been fully reported at a meeting of the Geological Society.
Measuring concentrations of oxygen isotopes trapped in belemnite guard shell fossils, scientists have determined that the seas of that time were warmer than today.
For instance, from measurements made on belemnite fossils from New Jersey, the ocean temperature in the latter part of the Cretaceous at this latitude seems to have been around 72 degrees Fahrenheit year-round, a warmth comparable to the seas around southern Florida today.
It reminded me of a sepia painting I had once seen done from the ink of a fossil Belemnite that must have perished and become fossilized millions of years ago.
You must make a vast variety of invertebrates, to start with -- belemnites, trilobites, Jebusites, Amalekites, and that sort of fry, and put them to soak in a primary sea, and wait and see what will happen.
Closely allied to the ammonites were the belemnites, smaller straight-shelled cephalopods more closely related to modern squid.
Considering that in some Cretaceous marine deposits there are vast numbers of these shells, the belemnites must have concentrated together in schools much as do modern squid.
It was a fine-grained gray stone with two fossil belemnites swimming across its surface, like pale comets.
The belemnite, it turned out, had been discovered four years earlier by an amateur naturalist named Chaning Pearce, and the discovery had been fully reported at a meeting of the Geological Society.
He had search diligently and come up with only two shells, both belemnites.
The belemnites had given way to their squidlike cousins-but the geological period in which belemnites had existed in the absence of ammonites was restricted.
There were also the relatives of the cephalopods: the belemnites, and the nautiloids and ammonites.
The belemnites were cigar-shaped shells completely surrounded by flesh, almost like little manta rays with backbones fused.
Those sea reptiles that fed on fish or belemnites might endure, such as the particular ichthyosaur we encountered, but not those specializing in ammonites.
The belemnites had given way to their squidlike cousins—but the geological period in which belemnites had existed in the absence of ammonites was restricted.