Truncoheronallenia: Brief Summary
(
espagnol ; castillan
)
fourni par wikipedia ES
Truncoheronallenia es un género de foraminífero bentónico de la familia Glabratellidae, de la superfamilia Glabratelloidea, del suborden Rotaliina y del orden Rotaliida. Su especie tipo es Truncoheronallenia rarescens. Su rango cronoestratigráfico abarca el Holoceno.
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Diagnosis
(
anglais
)
fourni par World Register of Marine Species
Test trochospiral, planoconvex, spiral side convex, about two gradually enlarging whorls of five to seven chambers each, curved and oblique limbate sutures merging outward into the peripheral keel, umbilical side flat with large open umbilicus, sutures radial, slightly depressed, periphery with thick ornate keel; wall calcareous, opaque, finely perforate, smooth on the spiral side, umbilical side with numerous radial granular striae leading to the umbilicus and more prominent granules may encircle the umbilicus, beaded peripheral ke,el with elevated pustules and rugae; aperture interiomarginal, umbilical, and those of earlier chambers may remain open. Holocene; Pacific: off Korea. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification)
Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp.
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- WoRMS Editorial Board
Datos: Q22945180
Especies: Truncoheronallenia
