Foraminifera taxon details

Igorina Davidzon, 1976 †

721433  (urn:lsid:marinespecies.org:taxname:721433)

accepted
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marine, brackish, fresh, terrestrial
fossil only
feminine
Davidzon, R. M. (1976). Novyy paleogenovyy rod planktonnykh foraminifer [A new Paleogene planktonic foraminiferal genus]. <em>Trudy Vsesoyuznogo Nauchnoissledovatel'skogo Geologorazvedochnogo Neftyanogo Instituta (VNIGNI), Tadzhikskoe Otdelenie.</em> 183: 197-198.
page(s): p. 197 [details]   
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Igorina Davidzon, 1976 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=721433 on 2024-03-28
Date
action
by
2013-03-08 13:53:47Z
created
2017-09-13 21:21:36Z
changed
2017-12-25 14:25:40Z
changed
2018-09-27 09:06:32Z
changed

original description Davidzon, R. M. (1976). Novyy paleogenovyy rod planktonnykh foraminifer [A new Paleogene planktonic foraminiferal genus]. <em>Trudy Vsesoyuznogo Nauchnoissledovatel'skogo Geologorazvedochnogo Neftyanogo Instituta (VNIGNI), Tadzhikskoe Otdelenie.</em> 183: 197-198.
page(s): p. 197 [details]   

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 trochospirally enrolled, compact, biconvex, commonly with more convex umbilical side, five to nine chambers in the final whorl, arched backward at the periphery on the spiral side, sutures flush to slightly depressed and oblique, chambers subtriangular on the umbilical side, and sutures radial and straight to gently curved, umbilicus small to absent, periphery subangular, outline weakly lobulate; wall calcareous, surface smooth to weakly and finely pustulose; aperture a low interiomarginal slit midway between the umbilicus and periphery but may extend to the small umbilicus. U. Paleocene to L. Eocene, cosmopolitan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]