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WoRMS taxon details

Cyclorbiculina A. Silvestri, 1937

415262  (urn:lsid:marinespecies.org:taxname:415262)

accepted
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marine, brackish, fresh, terrestrial
feminine
Silvestri, A. (1937). Foraminiferi dell'Oligocene e del Miocene della Somalia. <em>Palaeontographia Italica.</em> 32(suppl. 2): 45-264.
page(s): p. 88 [details] Available for editors  PDF available [request]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Cyclorbiculina A. Silvestri, 1937. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=415262 on 2024-12-03
Date
action
by
2009-09-23 14:01:30Z
created
db_admin
2010-08-14 08:56:07Z
changed
2013-03-08 15:09:52Z
changed
2014-04-10 07:43:33Z
changed
2019-12-01 11:04:22Z
changed

Creative Commons License The webpage text is licensed under a Creative Commons Attribution 4.0 License


original description Silvestri, A. (1937). Foraminiferi dell'Oligocene e del Miocene della Somalia. <em>Palaeontographia Italica.</em> 32(suppl. 2): 45-264.
page(s): p. 88 [details] Available for editors  PDF available [request]

additional source Hamaoui, M.; Brun, L. (1974). Cycledomia (Foram.), taxonomie et stratigraphie. <em>Bulletin du Centre de Recherches Pau - SNPA.</em> 8(1): 1-93. [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]
From editor or global species database
Diagnosis Test large, discoidal, proloculus and flexostyle followed by planispiral and involute early stage, producing a thickened central part of the test, chambers rapidly increasing in breadth so that the test becomes flabelliform, reniform, and finally discoidal with annular chambers, interior subdivided by two sets of radial septula or intradermal plates that project inward from the lateral faces of the chambers toward the rows of apertures, partitions may be discontinuous and resemble pillars that fuse at the base with adjacent pillars or partitions may be nearly continuous across the chamber, leaving open only the small foramina between opposing chamberlets; wall calcareous, porcelaneous; aperture of two or three rows of multiple pores in a median groove on the truncate apertural face, each opening bordered by a lip; mature tests have six to ten distinctly broader cyclic chambers with larger chamberlets, formed during a short period of time to serve as reproduction chambers for multiple fission, the brood chambers being partially destroyed during the release of the young embryos; symbiotic algae present in the inner chambers of the vegetative test and are provided to the young embryos at the time of reproduction. Oligocene to Holocene; Atlantic; Caribbean; Gulf of Mexico. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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