Foraminifera taxon details

Bassoviellum Marinov, 2024

1785458  (urn:lsid:marinespecies.org:taxname:1785458)

accepted
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marine, brackish, fresh, terrestrial
Marinov V. A. (2024). A new foraminiferan genus <i>Bassoviellum</i> gen. nov. (subfamily Recurvoidinae) from the Upper Jurassic and Lower Cretaceous of the Arctic. <em>Paleontological Journal.</em> 58(8): 898-907., available online at http://mmtk.ginras.ru/pdf/marinov2024_en.pdf
page(s): p. 903 [details] Available for editors  PDF available [request]
Original description Diagnosis. Test multicamerate, composed of two, three, or four whorls. Early whorls streptospiral, variously expressed, at...  
Original description Diagnosis. Test multicamerate, composed of two, three, or four whorls. Early whorls streptospiral, variously expressed, at later ontogenetic stages coiling planispiral, test completely evolute, with lobed contour, test periphery rounded; chambers convex, similar to isometric, subspherical in shape, with width (b)approximately equal to the width of apertural surface (H), septal sutures narrow, impressed; umbilical area (du) in adult tests shallow and wide, with no noticeable grains of agglutinated material in the wall composition; aperture surface convex, rounded, its slightly width (H) greater (1.2–1.5 times) than its median height (ham), the height of the cut-out at the base of the wellhead surface (has) is much smaller (0.2–0.125) than the height of the apertural surface (hal) (Fig. 3).No aperture visible. Only in tests with internal cavity filled with pyrite, the basal or close to basal position of the foramen is visible in transmitted light.
(Marinov (2024)). [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Bassoviellum Marinov, 2024. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=1785458 on 2026-02-16
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2024-12-25 00:24:13Z
created

original description Marinov V. A. (2024). A new foraminiferan genus <i>Bassoviellum</i> gen. nov. (subfamily Recurvoidinae) from the Upper Jurassic and Lower Cretaceous of the Arctic. <em>Paleontological Journal.</em> 58(8): 898-907., available online at http://mmtk.ginras.ru/pdf/marinov2024_en.pdf
page(s): p. 903 [details] Available for editors  PDF available [request]
From editor or global species database
Original description Diagnosis. Test multicamerate, composed of two, three, or four whorls. Early whorls streptospiral, variously expressed, at later ontogenetic stages coiling planispiral, test completely evolute, with lobed contour, test periphery rounded; chambers convex, similar to isometric, subspherical in shape, with width (b)approximately equal to the width of apertural surface (H), septal sutures narrow, impressed; umbilical area (du) in adult tests shallow and wide, with no noticeable grains of agglutinated material in the wall composition; aperture surface convex, rounded, its slightly width (H) greater (1.2–1.5 times) than its median height (ham), the height of the cut-out at the base of the wellhead surface (has) is much smaller (0.2–0.125) than the height of the apertural surface (hal) (Fig. 3).No aperture visible. Only in tests with internal cavity filled with pyrite, the basal or close to basal position of the foramen is visible in transmitted light.
(Marinov (2024)). [details]
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