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MarBEF Data System |
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Foraminifera taxon details
From editor or global species database
Diagnosis Test elongate, ovate, compressed, biserial, with plane of biseriality sigmoid in plan for most of the test length, chambers increasing rapidly in height, final one terminal and appearing rectilinear, sutures distinct, curved, strongly oblique, constricted, internal septa resorbed with growth; wall calcareous, hyaline, with opaque longitudinal bands along the periphery, surface smooth; aperture terminal, an elongate slit, leading into a funnellike entosolenian tube that narrows rapidly, then bends sharply to a circular opening directed toward one wall. Holocene; E. Pacific: off Mexico; Galapagos Islands. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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