CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia menardii (d'Orbigny) subsp. antarctica McCulloch 1977
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Citation: Globorotalia menardii (d'Orbigny) subsp. antarctica McCulloch 1977Taxonomic rank: sub-speciesType specimens: holotype (fig. 4), AHF 2601.Type age (chronostrat): RecentType locality: In 1300 fms. on Velero Station 668, 60°13'S, 147°45'E, off Antarctica.Type repository: Los Angeles, Univ Southern California, Allan Hancock Foundation
Original Description Test free, calcareous, lenticular, biconvex, trochospiral, periphery lobulate, carinate acute; wall hyaline to opaque some what pustulose dorsally, smoother ventrally, finely perforate; dorsal side presenting al most three whorls of rather small al most noninflated chambers gradually increasing in size sep a rated by flush to depressed limbate sutures in form of raised nodolous bands particularly initially; about seven chambers in last formed whorl; ventral side involute rather large open umbilicus with chambers ending me dially in small umbilical flaps with acute or blunted tips; aperture interiomarginal extraumbilical umbilical and with a narrow curved smooth rim. Size: “Size. - Holotype (fig. 4) 0.58 x 0.41 x 0.24mm. Extra details from original publication This is not a typical Globorotalia menardii (d’Orbigny) and does not belong to the same species on the basis of texture, organization of chambers and sutures; not enough material is at hand to describe the taxon completely at species level. G. menardii (d’Orbigny) var. fijiensis Cushman 1934, may be the most closely related taxon.
References:
McCulloch, I. A. (1977). McCulloch, I. A. (1977). Qualitative observations on Recent foraminiferal tests with emphasis on the eastern Pacific (3 vols). University of Southern California, Los Angeles. -. University of Southern California, Los Angeles. -. gs
Globorotalia menardii antarctica compiled by the pforams@mikrotax project teamviewed: 23-6-2025
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McCulloch 1977 pl177 f4.JPG
McCulloch 1977 pl177 f4.JPG
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