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Foraminifera taxon detailsSemiinvoluta Kristan, 1957 †
721920 (urn:lsid:marinespecies.org:taxname:721920)
accepted
Genus
Semiinvoluta clari Kristan, 1957 † (type by original designation)
marine,
fossil only
feminine
Kristan, E. (1957). Ophthalmidiidae und Tetrataxinae (Foraminifera) aus dem Rhät der Hohen Wand in Nieder-Österreich. <em>Jahrbuch der Geologischen Bundesanstalt.</em> 100: 269-298., available online at https://opac.geologie.ac.at/wwwopacx/wwwopac.ashx?command=getcontent&server=images&value=JB1002_269_A.pdf
page(s): p. 276 [details] Available for editors  [request]
Diagnosis Test inflated to discoidal, asymmetrical, the globular proloculus followed by an undivided enrolled tubular second chamber,...
Diagnosis Test inflated to discoidal, asymmetrical, the globular proloculus followed by an undivided enrolled tubular second chamber, coiling semi-involute, umbilical pillarlike fillings on the flattened side of the test, the lamellar deposits leaving a smooth surface on the inflated side; aperture at the open end of the chamber. U. Triassic (Norian to Rhaetian); Austria; Czechoslovakia; Yugoslavia. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Semiinvoluta Kristan, 1957 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=721920 on 2025-05-19
Date action by
original description
Kristan, E. (1957). Ophthalmidiidae und Tetrataxinae (Foraminifera) aus dem Rhät der Hohen Wand in Nieder-Österreich. <em>Jahrbuch der Geologischen Bundesanstalt.</em> 100: 269-298., available online at https://opac.geologie.ac.at/wwwopacx/wwwopac.ashx?command=getcontent&server=images&value=JB1002_269_A.pdf
page(s): p. 276 [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 [details] Available for editors [request]From editor or global species database
Diagnosis Test inflated to discoidal, asymmetrical, the globular proloculus followed by an undivided enrolled tubular second chamber, coiling semi-involute, umbilical pillarlike fillings on the flattened side of the test, the lamellar deposits leaving a smooth surface on the inflated side; aperture at the open end of the chamber. U. Triassic (Norian to Rhaetian); Austria; Czechoslovakia; Yugoslavia. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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