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a.1.Having small openings, or foramina.
2.Pertaining to, or composed of, Foraminifera; as, foraminiferous mud.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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a) Female dorsal view, b) dorsal view, c) right lateral view, d) angular slit between the head and PI (detail), e) details of epibionts (presumably foraminiferous).
Since the Miocene sedimentation changed to marly nannofossil chalks and foraminiferous nannofossil ooze showing signs of the influence of bottom currents and cyclic sedimentation patterns (Rehault and Mauffret, 1979).