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TROCHACEA [1 record]

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Record 1 1977-07-05

English

Subject field(s)
  • Paleontology
OBS

[Gastropods of the] superfamily Trochacea [have] conical turbiniform or subglobose shells with [an] entire aperture; [the] inner shell layer, and [the] outermost layer in some genera [are] nacreous; [the] operculum [is] corneous or calcareous, spiral (...) "Trias.-Rec.".

French

Domaine(s)
  • Paléontologie
OBS

[Les Gastéropodes de la] super-famille des Trochacea [ont une] forme trochoïde, c'est-à-dire à tours plans et base plane, section des tours quadrangulaire. [La] couche interne [est] nacrée. [L']ornementation [est] surtout longitudinale, formée de cordons portant des granules et des tubercules.

Spanish

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