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Fig. 1. Blades, costae and costellae, linear-elongate ornaments of lamellar-perforate shells. B: Loxostoma amygdalaeformis (Brady), lateral view; (Hottinger, 2006; fig. 23;[1] CC/BY-NC-SA)


  • according to Hottinger (2006):

COSTAE - raised ribs or ridges on test surface.

See also


Hottinger (2006), Illustrated glossary of terms used in foraminiferal research. Carnets de Géologie, Memoir 2, ISSN 1634-0744

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