- according to Hottinger (2006):
BASAL - at the base or parallel and proximate to the base of a structural element or of a complete architecture.
Remarks: The term is occasionally used for interiomarginal apertures or foramina at the base of the apertural face adjacent to the previous whorl (in contrast to areal) or for the base of a cone in conical shells including sections in or parallel to the base of the cone. See also basal layer.
Hottinger (2006), Illustrated glossary of terms used in foraminiferal research. Carnets de Géologie, Memoir 2, ISSN 1634-0744
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