WoRMS taxon details
Spirocyclina Munier-Chalmas, 1887
738670 (urn:lsid:marinespecies.org:taxname:738670)
accepted
Genus
Spirocyclina choffati Munier-Chalmas, 1887 † (type by original designation)
marine, brackish, fresh, terrestrial
recent only
feminine
Munier-Chalmas, E. (1887). Trois genres nouveaux de Foraminifères. <em>Compte-rendu sommaire des Séances de la Société géologique de France.</em> 1887(7): xxx-xxi.
page(s): p. 31 [details]
page(s): p. 31 [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Spirocyclina Munier-Chalmas, 1887. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=738670 on 2025-03-28
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Nomenclature
original description
Munier-Chalmas, E. (1887). Trois genres nouveaux de Foraminifères. <em>Compte-rendu sommaire des Séances de la Société géologique de France.</em> 1887(7): xxx-xxi.
page(s): p. 31 [details]
page(s): p. 31 [details]
From editor or global species database
Diagnosis Test large, up to 10 mm in diameter, flattened, planispirally enrolled to slightly asymmetrical, largely involute but spire increasing rapidly in height to become peneropline, rarely may be uncoiled and rectilinear in the final stage, chambers low and broad, strongly arcuate, about twenty-five in the final whorl, periphery subacute; wall microgranular calcareous, agglutinated, with imperforate epidermal layer and coarse subepidermal network, apertural face slightly depressed centrally and thickened toward the margins, septa compact, of slightly less thickness than the chamber lumen, endoskeletal interseptal septula or beams and rafters subdividing the chambers into rectangular secondary chamberlets, near the center of the test the beams may be reduced to pillars or to mere protuberances from the septa lying between the apertural pores, but a single elongated one lying in the plane of coiling between the apertural pores of successive chambers may subdivide the test; aperture multiple, two rows of pores lying in the slight depression on the apertural face, parallel to the plane of coiling. U. Cretaceous (Santonian); France. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
