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Foraminifera taxon detailsPseudovidalina Sosnina, 1978 †
 721910 (urn:lsid:marinespecies.org:taxname:721910)
accepted
Genus
Pseudovidalina ornata Sosnina, 1978 † (type by original designation)
marine,
fossil only
feminine
Sosnina, M. I. (1978). О фораминиферах чандалазского горизонта поздней перми Южного Приморья - On foraminifera of the Late Permian Chandalazsk Horizon of southern Primorye. In L. I. Popeko, Верхний палеозой Северо-Восточной Азии. <em>Vladivostok: lnstituta Tektoniki i Geofiziki, Akademiya Nauk SSSR, Dal'nevostochnyy Nauchnyy Tsentr.</em> 24-43.
page(s): p. 27 [details] Available for editors  [request]
Description Emended diagnosis. Test discoidal to lenticular. Proloculus followed by an undivided tubular chamber. Coiling involute; last...
Description Emended diagnosis. Test discoidal to lenticular. Proloculus followed by an undivided tubular chamber. Coiling involute; last whorls rarely semi-evolute or evolute. Lumen of the chamber with similar morphologies as in the archaediscids: involutus, concavus, angulatus and perhaps tenuis stages. Calcareous wall bilayered, with an internal dark microgranular and an outer pseudofibrous, yellowish wall. The internal layer constitutes an internal microgranular test; the external symmetrical layer is derived from the unilateral filling of the Howchinidae and Lasiodiscidae. Aperture terminal, simple. Occurrence. Rare in the Gzhelian (Henderson et al., 1995). Relatively frequent from uppermost Gzhelian (=Orenburgian = Bursumian = Newellian) to upper Changhsingian. Cosmopolitan, but rare in the North American craton. (Alipour and Vachard in Alipour et al. (2013)). [details] Diagnosis Test small, discoid, large globular proloculus followed by planispirally enrolled tubular undivided second chamber, coiling...
Diagnosis Test small, discoid, large globular proloculus followed by planispirally enrolled tubular undivided second chamber, coiling evolute, but with strong secondary lamellar thickening in the umbilical region, apparently a layer being added at the formation of each of the early whorls, later whorls appear wholly evolute without added umbilical lamellae; wall calcareous, apparently with a thin inner dark layer and a vitreous outer layer, appearing in section as light yellow and radiate in structure; aperture simple at the open end of the tubular chamber. M. Permian (Kungurian, Chandalazsk Horizon), Guadalupian; USSR: Northeast Asia, S. Primorye Territory. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Pseudovidalina Sosnina, 1978 †. Accessed at: https://www.marinespecies.org/Foraminifera/aphia.php?p=taxdetails&id=721910 on 2025-05-21
Date action by
original description
Sosnina, M. I. (1978). О фораминиферах чандалазского горизонта поздней перми Южного Приморья - On foraminifera of the Late Permian Chandalazsk Horizon of southern Primorye. In L. I. Popeko, Верхний палеозой Северо-Восточной Азии. <em>Vladivostok: lnstituta Tektoniki i Geofiziki, Akademiya Nauk SSSR, Dal'nevostochnyy Nauchnyy Tsentr.</em> 24-43.
page(s): p. 27 [details] Available for editors [request]basis of record Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ page(s): pl. 311 fig. 14-16; note: Pseudovidalina ornata Sosnina. U. Permian (Chandalazsk Horizon), S. Primorye, USSR. 14, Equatorial section, x 70; 15, 16, axial section of holotype, x 70 and x 100, respectively (from Sosnina, 1978). ... Pseudovidalina ornata Sosnina. U. Permian (Chandalazsk Horizon), S. Primorye, USSR. 14, Equatorial section, x 70; 15, 16, axial section of holotype, x 70 and x 100, respectively (from Sosnina, 1978). . . (p. 297).
[request]From editor or global species database
Description Emended diagnosis. Test discoidal to lenticular. Proloculus followed by an undivided tubular chamber. Coiling involute; last whorls rarely semi-evolute or evolute. Lumen of the chamber with similar morphologies as in the archaediscids: involutus, concavus, angulatus and perhaps tenuis stages. Calcareous wall bilayered, with an internal dark microgranular and an outer pseudofibrous, yellowish wall. The internal layer constitutes an internal microgranular test;the external symmetrical layer is derived from the unilateral filling of the Howchinidae and Lasiodiscidae. Aperture terminal, simple. Occurrence. Rare in the Gzhelian (Henderson et al., 1995). Relatively frequent from uppermost Gzhelian (=Orenburgian = Bursumian = Newellian) to upper Changhsingian. Cosmopolitan, but rare in the North American craton. (Alipour and Vachard in Alipour et al. (2013)). [details] Diagnosis Test small, discoid, large globular proloculus followed by planispirally enrolled tubular undivided second chamber, coiling evolute, but with strong secondary lamellar thickening in the umbilical region, apparently a layer being added at the formation of each of the early whorls, later whorls appear wholly evolute without added umbilical lamellae; wall calcareous, apparently with a thin inner dark layer and a vitreous outer layer, appearing in section as light yellow and radiate in structure; aperture simple at the open end of the tubular chamber. M. Permian (Kungurian, Chandalazsk Horizon), Guadalupian; USSR: Northeast Asia, S. Primorye Territory. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details] |
