Foraminifera taxon details

Sigmavirgulina Loeblich & Tappan, 1957

112183  (urn:lsid:marinespecies.org:taxname:112183)

accepted
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marine, brackish, fresh, terrestrial
recent + fossil
feminine
Loeblich, A. R.; Tappan, H. (1957). Eleven New Genera of Foraminifera. <em>Bulletin United States National Museum.</em> 215: 223-232., available online at https://www.biodiversitylibrary.org/page/32376730
page(s): p. 227 [details]   
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2021). World Foraminifera Database. Sigmavirgulina Loeblich & Tappan, 1957. Accessed at: http://marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=112183 on 2024-03-29
Date
action
by
2004-12-21 15:54:05Z
created
2010-09-23 07:08:16Z
changed
2014-05-07 09:49:09Z
changed
2014-07-22 07:06:27Z
changed
2017-07-16 08:48:12Z
changed
2017-09-05 10:55:48Z
changed

original description Loeblich, A. R.; Tappan, H. (1957). Eleven New Genera of Foraminifera. <em>Bulletin United States National Museum.</em> 215: 223-232., available online at https://www.biodiversitylibrary.org/page/32376730
page(s): p. 227 [details]   

basis of record Gross, O. (2001). Foraminifera, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 60-75 (look up in IMIS[details]   

additional source 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  PDF available [request] 

additional source Revets, S. A. (1996). The generic revision of five families of Rotaliine Foraminifera - Part 1. The Bolivinitidae Cushman, 1927. <em>Cushman Foundation for Foraminiferal Research, Special Publication.</em> 1-55., available online at https://cushmanfoundation.allenpress.com/Portals/_default/SpecialPublications/sp34.pdf [details]  Available for editors  PDF available [request] 
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
From editor or global species database
Diagnosis Test flaring, compressed, biserial throughout, early chambers added slightly more than 180¡ apart, resulting in a sigmoid alignment of chambers that at first form a tight low spire, later biserial chambers of increasing relative breadth resulting in a widening test and added more nearly in a single plane, periphery acutely angled or carinate, sutures slightly depressed; wall calcareous, of calcite by X-ray determination, optically granular, coarsely perforate, surface smooth or early stage may have short spinules; aperture an elongate oval at the inner margin of the final chamber, surrounded by a lip that grades laterally into the marginal keel, more rarely closed basally so that the opening is subterminal, situated a short distance above the chamber base, and provided with a simple twisted and flaring toothplate. Miocene to Holocene; cosmopolitan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]