Foraminifera taxon details
Cyclorbiculinoides Robinson, 1974 †
722036 (urn:lsid:marinespecies.org:taxname:722036)
accepted
Genus
Cyclorbiculinoides jamaicensis Robinson, 1974 † (type by original designation)
marine, brackish, fresh, terrestrial
fossil only
masculine
Robinson, E. (1974). Some larger foraminifera from the Eocene Iimestones at Red Gal Ring, Jamaica. <em>Verhandlungen der Naturforschenden Gesellschaft in Basel.</em> 84: 281-292.
page(s): p. 288 [details] Available for editors
[request]
page(s): p. 288 [details] Available for editors
[request]
Diagnosis Test discoidal, megalospheric test up to 7 mm in diameter, microspheric ones up to 24 mm in diameter and up to 1 mm in...
Diagnosis Test discoidal, megalospheric test up to 7 mm in diameter, microspheric ones up to 24 mm in diameter and up to 1 mm in thickness at the periphery, subspherical megalospheric proloculus followed by one or more broad and low undivided peneropliform chambers, then with more numerous cyclic chambers, up to about thirty in the microspheric test; later peneropliform chambers and all cyclic ones subdivided by radial subepidermal partitions, attached to both walls but not complete in the equatorial part of the chamber, partitions aligned in successive chambers rather than alternating as in Cyclorbiculina, later chambers of large microspheric tests may also have radially arranged buttresses in the thickened equatorial zone of the chambers; wall calcareous, imperforate, porcelaneous, surface smooth but with concentric ridges formed by the elevated septa; aperture of numerous rounded openings in two rows at each margin of the periphery and smaller pores scattered irregularly between the rows, the apertural pores of earlier chambers remaining as intercameral foramina. M. and U. Eocene; Jamaica. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Cyclorbiculinoides Robinson, 1974 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=722036 on 2025-09-12
Date
action
by
original description
Robinson, E. (1974). Some larger foraminifera from the Eocene Iimestones at Red Gal Ring, Jamaica. <em>Verhandlungen der Naturforschenden Gesellschaft in Basel.</em> 84: 281-292.
page(s): p. 288 [details] Available for editors [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 [request]
page(s): p. 288 [details] Available for editors
[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
[request]From editor or global species database
Diagnosis Test discoidal, megalospheric test up to 7 mm in diameter, microspheric ones up to 24 mm in diameter and up to 1 mm in thickness at the periphery, subspherical megalospheric proloculus followed by one or more broad and low undivided peneropliform chambers, then with more numerous cyclic chambers, up to about thirty in the microspheric test; later peneropliform chambers and all cyclic ones subdivided by radial subepidermal partitions, attached to both walls but not complete in the equatorial part of the chamber, partitions aligned in successive chambers rather than alternating as in Cyclorbiculina, later chambers of large microspheric tests may also have radially arranged buttresses in the thickened equatorial zone of the chambers; wall calcareous, imperforate, porcelaneous, surface smooth but with concentric ridges formed by the elevated septa; aperture of numerous rounded openings in two rows at each margin of the periphery and smaller pores scattered irregularly between the rows, the apertural pores of earlier chambers remaining as intercameral foramina. M. and U. Eocene; Jamaica. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
Image from typetaxon