- according to Hottinger (2006):
CUPULE - radial, rounded ridges on the shell face of conical shells resulting from an arrangement of slightly inflated radial chamberlets alternating in radial position in subsequent cycles.
Remarks: the term "cupule" means "cup" in French and English and refers to the cup-shaped sections perpendicular to an elongate barrel vault forming the radial chamberlets as in Orbitolinopsis, Orbitolinella or Halkyardia.
Hottinger (2006), Illustrated glossary of terms used in foraminiferal research. Carnets de Géologie, Memoir 2, ISSN 1634-0744