belemnite battlefield

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belemnite battlefield

In paleontology, an area containing a high concentration of fossilized belemnites (properly, belemnitida), an extinct order of cephalopods that existed in the Mesozoic era. I was lucky in my first year as a professional paleontologist to stumble upon a huge, undiscovered belemnite battlefield.
References in periodicals archive ?
Belemnite calcite was processed in the stable isotope labs of the Michigan University (USA) following the methods described in Gomez and Goy (2011).
VPDB is the corrected isotope delta value for 13C measured against the reference standard Vienna Pee Dee Belemnite (VPDB).
13]C values were expressed relative to the international Pee Dee Belemnite (PDB) standard using per mil units (Craig, 1957).
Where there is a discrepancy between the disposition of a structure and its anatomical origins, as in tortoise shells and belemnite guards, we classify the structure on the basis of its actual geometry, for we are here concerned with the design elements animals actually employ, rather than their strict homologies and evolutionary derivations.
It is generally accepted that the preservation conditions of calcitic belemnite rostra, which are distinguished by their original low-magnesium calcite composition, makes them relatively stable and resistant to diagenetic alteration (Veizer, 1974; Sslen, 1989; Podhala et al.
13]C deviation from the internationally recognized standards Vienna Pee Dee Belemnite (VPDB).
Data were reported relative to the International Atomic Energy Agency secondary standards that have been certified relative to Vienna PeeDee Belemnite for [delta][sup.
13]C values are reported in per mil relative to Vienna Pee Dee belemnite standard and the reproducibility was better than [+ or -] 0.
Nitrogen is referenced to atmospheric nitrogen and carbon to the Pee Dee Belemnite (PDB) standard.
Standards used were PeeDee Belemnite limestone ([delta][sup.
13]C foi medida em relacao ao padrao de carbono chamado de Peedee Belemnite Carbonate (PDB) na relacao: