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PRO-OSTRACUM [1 record]

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Record 1 1977-04-22

English

Subject field(s)
  • Paleontology
OBS

(...) the dorsal part of the [belemnite] phragmocone projects far beyond the last-formed septum as a blade-like extension, termed the "pro-ostracum" ("foreshell").

French

Domaine(s)
  • Paléontologie
OBS

[Le proostracum] est une expansion dorsale de la parois du phragmocône [d'une bélemnite]. Sa nature cornée et aragonitique a rendu sa conservation exceptionnelle (...)

Spanish

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