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Foraminifera taxon detailsRotorbinella trinidadensis McCulloch, 1981
 763163 (urn:lsid:marinespecies.org:taxname:763163)
accepted
Species
marine,
McCulloch, I. (1981). Qualitative observations on Recent foraminiferal tests. Part IV with emphasis on the Allan Hancock Atlantic Expedition Collections. University of Southern California, Los Angeles. 362 p. 72 pls. [details] Available for editors
 [request]
Original description Test free, calcareous, medium size, subcircular, planoconvex, trochoid; periphery lobulate, marginate, acute; dorsal spiral...
Original description Test free, calcareous, medium size, subcircular, planoconvex, trochoid; periphery lobulate, marginate, acute; dorsal spiral side evolute, convex, showing about three complete whorls of noninflated, subcrescent-shaped chambers; about six chambers in last-formed whorl; dorsal wall polished, finely perforate, shades of brown to colorless, opaque; dorsal sutures narrow, limbate, about flush, more obliquely angular than curved, marginate margins confluent with periphery; ventral side flat, involute, umbilical plug flat, small, smooth, hyaline; chambers ventrally slightly inflated, walls semihyaline, more coarsely perforate; sutures radiate, curved, slightly sinuous; narrow, limbate suture lines suggesting reentrants with final two showing more than one; aperture interiomarginal at base of final chamber. Size: .332 mm. dia. x .144 mm. [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Rotorbinella trinidadensis McCulloch, 1981. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=763163 on 2025-05-20
Date action by
original description
McCulloch, I. (1981). Qualitative observations on Recent foraminiferal tests. Part IV with emphasis on the Allan Hancock Atlantic Expedition Collections. University of Southern California, Los Angeles. 362 p. 72 pls. [details] Available for editors
[request]From editor or global species database
Original description Test free, calcareous, medium size, subcircular, planoconvex, trochoid; periphery lobulate, marginate, acute; dorsal spiral side evolute, convex, showing about three complete whorls of noninflated, subcrescent-shaped chambers; about six chambers in last-formed whorl; dorsal wall polished, finely perforate, shades of brown to colorless, opaque; dorsal sutures narrow, limbate, about flush, more obliquely angular than curved, marginate margins confluent with periphery; ventral side flat, involute, umbilical plug flat, small, smooth, hyaline; chambers ventrally slightly inflated, walls semihyaline, more coarsely perforate; sutures radiate, curved, slightly sinuous; narrow, limbate suture lines suggesting reentrants with final two showing more than one; aperture interiomarginal at base of final chamber. Size: .332 mm. dia. x .144 mm. [details]
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