Foraminifera taxon details

Concavella Lipps, 1965 †

722260  (urn:lsid:marinespecies.org:taxname:722260)

accepted
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marine, brackish, fresh, terrestrial
fossil only
feminine
Lipps, J.H. 1965. Revision of the foraminiferal family Pseudoparrellidae Voloshinova. Tulane Studies in Geology and Paleontology 3: 117-147., available online at https://journals.tulane.edu/index.php/tsgp/article/view/398
page(s): p. 121 [details]  Available for editors  PDF available [request] 
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Concavella Lipps, 1965 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=722260 on 2024-04-26
Date
action
by
2013-03-08 13:53:47Z
created
2018-01-02 09:33:00Z
changed
2019-11-13 17:38:08Z
changed

original description Lipps, J.H. 1965. Revision of the foraminiferal family Pseudoparrellidae Voloshinova. Tulane Studies in Geology and Paleontology 3: 117-147., available online at https://journals.tulane.edu/index.php/tsgp/article/view/398
page(s): p. 121 [details]  Available for editors  PDF available [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  PDF available [request] 
From editor or global species database
Diagnosis Test circular in outline, concavoconvex, trochospiral, about two to two and a half whorls, eight to nine chambers in the final whorl, spiral side flattened to strongly excavated with flush and strongly oblique sutures, convex umbilical side involute to slightly evolute with sutures nearly radial and depressed around the umbilicus, periphery broadly truncate, margin of the spiral side carinate and that of the umbilical side gently rounded; wall calcareous, hyaline, optically radial, surface smooth; aperture an interiomarginal slit extending up the apertural face on the umbilical side, adjacent to and paralleling the peripheral keel, may become areal and fail to reach the base of the apertural face in specimens that become bievolute in the later stage. M. Miocene; USA: California. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]