WoRMS taxon details
Quinqueloculina obstipa McCulloch, 1981
762502 (urn:lsid:marinespecies.org:taxname:762502)
accepted
Species
marine, brackish, fresh, terrestrial
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 
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Type locality contained in Caribbean Sea
type locality contained in Caribbean Sea [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Quinqueloculina obstipa McCulloch, 1981. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=762502 on 2025-05-07
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Nomenclature
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Original description Test elongate, subovate, compressed; periphery rounded; length three times width, more than five times thickness; quinqueloculine organization of chambers indicated externally, axis of structure almost 45" off longitudinal axis; wall smooth, porcelaneous, opaque, imperforate, polished; last formed chambers subcylindrical, arcuate, greater curve and diameter posteriorly, basal end broad, round, tapered below preceding chamber; suture between chambers depressed, margin showing slight indentation; anterior end narrower by one half, about flush, not oblique; opening semicircular, tooth short, heavy, bifid.Size: .498 x .I66 x .091 mm.
Holotype (AHF 5291) Station At 521
This species is characterized by size, shape, and structural axis of chambers which does not coincide with mid-longitudinal axis of test. Reuss and Terquem described a series of fossil taxa with unique organization of chambers. They included Quinqueloculina angustissima Reuss, 1850, from Rumania and Q . arenosa Terquem, 1886. The former is more angular; the latter apparently is not a quinqueloculine form. [details]
