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Globigerinita sp.1 Quilty 1976 from: Quilty, P.G.. (1976): Planctonic foraminifera DSDP Leg 34- Nazca Plata . DSDP initial reports Vol. 34
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Species Globigerinita sp.1 Quilty 1976


Diagnosis / Definition:
Quilty (1976):
Description: Test small (0.15 mm), compact, with four chambers in each whorl, with the possible exception of the first which was not studied. Dorsal surface weakly convex, ventral uniformly convex. Lateral profile somewhat compressed with a weak tendency to develop an equatorial shoulder. Chambers less than hemispherical, markedly longer tangentially than radially. Sutures broadly, shallowly depressed, radial on the ventral surface, strongly recurved on the dorsal. Dorsal aspect distinctly globoquadrine or turborotaline. Aperture umbilical, details unknown. Aperture covered by bulla, which is elongate parallel to the apertural face; bulla covers aperture and has a single aperture over the penultimate chamber of the normally coiled part of the test. Bulla terminates at the periphery without supplementary apertures. Bulla aperture without raised rim or lip, but bordered by a narrow imperforate region. Wall of test thick, coarsely perforate. Bulla wall thicker and more coarsely perforate than in most bullae, but still thinner and less coarsely perforate than elsewhere on this species. Ridges between perforations on umbilical face sometimes elongate radially, giving a "stretched" appearance.
Discussion / Comments:
Quilty (1976):
Remarks: The most similar species seems to be Catapsydrax parvulus from which G. sp. 1 differs mainly in being dorsoventrally compressed and in having chambers which are tangentially elongate and almost globoquadrine in dorsal aspect. The characters of the bulla are almost like Turborotalita, but neither end of the bulla extends far enough.
Synonym list:
Quilty (1976):
1976 Globigerinita sp.1 Quilty. - Quilty : p.681 pl. 8, figs. 19-21
References:

Quilty,P.G.. (1976):
Planctonic foraminifera DSDP Leg 34- Nazca Plata . DSDP initial reports Vol. 34
Anonymous: Unedited TaxonConcept data
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