belemnite


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bel·em·nite

 (bĕl′əm-nīt′)
n.
Any of a group of extinct squidlike cephalopod mollusks of the Jurassic and Cretaceous Periods, having a cone-shaped internal shell.

[New Latin belemnītēs, from Greek belemnon, dart; see gwelə- in Indo-European roots.]

belemnite

(ˈbɛləmˌnaɪt)
n
1. (Palaeontology) any extinct marine cephalopod mollusc of the order Belemnoidea, related to the cuttlefish
2. (Palaeontology) the long pointed conical internal shell of any of these animals: a common Mesozoic fossil
[C17: from Greek belemnon dart]

bel•em•nite

(ˈbɛl əmˌnaɪt)

n.
any cylindrical or conical fossil that represents the internal shell of a group of extinct cephalopods allied to the cuttlefish.
[1640–50; < French bélemnite < Greek bélemn(on) a dart, derivative of bállein to throw]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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 Belemnitidaebelemnite - 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
Belemnitidae, family Belemnitidae - family of extinct Mesozoic cephalopods
fossil - the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil
References in classic literature ?
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.
The values of the isotopic ratios of carbon ([delta][.sup.13]C) and nitrogen ([delta][.sup.15]N) ([per thousand]) were compared with the universal references of PDB (Pee Dee Belemnite) and atmospheric nitrogen (Fry, 2003), respectively.
The uppermost most facies of the Chichali Formation is marked by the carbonaceous green clays, containing bioclasts of belemnite and ammonite (Fig.
The procedures for calculating isotope ratios are universally based on the following calculations: the isotopic differences between various materials are exceedingly small, so isotopic composition is reported relative to an internationally accepted standard (air for N and Pee Dee Belemnite for C).
Isotope results were reported in the conventional delta (5) notation, with units of per mil or parts per thousand ([per thousand]), relative to the international standards of Vienna-Pee Dee Belemnite (V-PDB) for [[delta].sup.13]C and [N.sub.air] for [[delta].sup.15]N.
Stable isotope ratios are reported in parts per thousand ([per thousand]) relative to international standards: Pee Dee belemnite (PDB) for carbon and atmospheric N for nitrogen.
Data are reported as differences in isotopic ratios, for which the units are parts per thousand (%o) compared to Vienna-Pee Dee Belemnite for carbon and to atmospheric nitrogen (air) for nitrogen.
The results were compared against the primary reference material or standards, the Vienna Pee Dee Belemnite (VPDB) for C, and the Vienna Standard Mean Ocean Water (VSMOW) for O (Matthews and Hayes, 1978).
For [delta][sup.13]C, the standard is the Peedee Belemnite (PDB) fossil of the mollusc Belemnitella Americana (DUCATTI et al., 2007).
For example, "carbon stable isotope ratio" refers to the relative amounts of [.sup.13]C and [.sup.12]C in a sample material relative to the same ratio of Vienna Pee Dee Belemnite (VPDB), a type of limestone.
We provide results as ratios in parts per thousand relative to international standards, Vienna-Peedee Belemnite and atmospheric nitrogen.