Foraminifera taxon details

Holmanella Loeblich & Tappan, 1962 †

527978  (urn:lsid:marinespecies.org:taxname:527978)

accepted
Genus
marine
fossil only
feminine
Loeblich, A. R.; Tappan, H. (1962). The foraminiferal genera Cibicides, Heterolepa, Planulina and Holmanella, new genus, Contributions from the Cushman Foundation for Foraminiferal Research 13:71-73. , available online at https://cushmanfoundation.allenpress.com/portals/_default/files/pubarchive/CCFFR/13ccffr3.pdf
page(s): p. 72 [details]  Available for editors  PDF available [request] 
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2023). World Foraminifera Database. Holmanella Loeblich & Tappan, 1962 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=527978 on 2023-09-25
Date
action
by
2010-10-04 12:28:38Z
created
2010-10-07 09:33:31Z
changed
2013-03-08 15:09:52Z
changed
2018-01-05 09:24:46Z
changed
2020-02-10 19:15:50Z
changed

original description Loeblich, A. R.; Tappan, H. (1962). The foraminiferal genera Cibicides, Heterolepa, Planulina and Holmanella, new genus, Contributions from the Cushman Foundation for Foraminiferal Research 13:71-73. , available online at https://cushmanfoundation.allenpress.com/portals/_default/files/pubarchive/CCFFR/13ccffr3.pdf
page(s): p. 72 [details]  Available for editors  PDF available [request] 

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] 
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
From editor or global species database
Diagnosis Test large, flattened, early stage in a low trochospiral coil, later becoming nearly planispiral and bievolute but not symmetrical, about two and a half rapidly enlarging whorls, increasing from about five to seven chambers per whorl in the early stage to eight or nine in the final whorl, sutures depressed, curved slightly back at the periphery, bluntly rounded periphery with imperforate carinal band; wall calcareous, thin, optically granular, coarsely perforate; aperture a low subequatorial arch in the early stage, becoming progressively more asymmetrical in later chambers, a narrow slit beginning perpendicular to the basal aperture and extending obliquely up the apertural face, both slits bordered above by a narrow lip, aperture continuing as a slit along the spiral suture on the umbilical side, the umbilical margin of each chamber bordered with a very narrow protruding flap or lip. M. Miocene (Helvetian), Mohnian; USA: California. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]