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OPEN UMBILICUS [1 record]

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Alphabetical list of terms

Record 1 1977-07-15

English

Subject field(s)
  • Paleontology
OBS

The center of a coiled [nautiloid] shell is the "umbilicus"", which may be "closed" or "open (perforated)", according to whether the first whorl is tightly coiled around itself or not.

French

Domaine(s)
  • Paléontologie
OBS

(...) l'ombilic est (...) dit "perforé" [lorsque] l'enroulement [d'une coquille de nautile] est assez lâche pour laisser un méat (...)

Spanish

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