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DEXTRAL GASTROPOD [1 record]

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Record 1 1977-06-30

English

Subject field(s)
  • Paleontology
OBS

In the apertural view of most coiled gastropod shells the aperture lies on the observer's right when the apex is uppermost; in other words, the shell, viewed from above the apex, coils in a clockwise direction as it grows. Such shells, provided that (...) the genitalia of the animal lie on the right-hand side of the head-foot mass or of the pallial cavity, are termed dextral.

French

Domaine(s)
  • Paléontologie
OBS

Enfin, disons un mot des Gastéropodes sénestres, caractérisées par le sens de leur enroulement, énantiomorphe de celui des coquilles dextres.

Spanish

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