Belemnoidea

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Belemnoidea

[‚bə·ləm′nȯid·ē·ə]
(paleontology)
An order of extinct dibranchiate mollusks in the class Cephalopoda.
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References in periodicals archive ?
The stomach contents consisted not of belemnites, but of fish and hatchling turtles.
Standards for C and N were Pee Dee Belemnite and atmospheric nitrogen, respectively.
Oxygen isotope ratios in carbonate values are expressed relative to the Vienna Pee Dee Belemnite (VPDB) standard.
18]O value relative to the international reference standard of Vienna PeeDee Belemnite (VPDB) in [per thousand], where
Data are related to the Pee Dee belemnite (PDB) standard through repeated analyses of National Bureau of Standard (NBS) isotopic reference material 19 (Hut 1987) by
Standards or international reference material used for C is Vienna Pee Dee Belemnite (VPDB), which is originally the Cretaceous belemnite material picked from the Pee Dee formation in South Carolina (Werner & Brand 2001) and atmospheric molecular nitrogen (AIR-[N.
All isotope ratios were expressed as the relative per mill ([per thousand]) difference between the sample and conventional standard reference materials (PeeDee Belemnite carbonate and [N.
I had a pocketful of belemnites (squid-like animal from 65-195 million years ago) pieces after just half an hour.