Foraminifera taxon details

Lepidosemicyclina Rutten, 1911 †

721530  (urn:lsid:marinespecies.org:taxname:721530)

accepted
Genus
Orbitoides (Lepidosemicyclina) Rutten, 1911 † · unaccepted (nom. transl. Opinion of Loeblich...)  
nom. transl. Opinion of Loeblich & Tappan (1987)

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marine, brackish, fresh, terrestrial
fossil only
feminine
(of Orbitoides (Lepidosemicyclina) Rutten, 1911 †) Rutten, L. M. R. (1911). On Orbitoides in the neighboorhood of the Balik Papan Bay, East-coast of Borneo. <em>Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen.</em> 13(2): 1122-1139., available online at https://www.biodiversitylibrary.org/page/13869352
page(s): p. 1135 [details]  OpenAccess publication 
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Lepidosemicyclina Rutten, 1911 †. Accessed at: https://marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=721530 on 2024-05-01
Date
action
by
2013-03-08 13:53:47Z
created
2017-06-07 10:06:56Z
changed
2018-01-08 14:45:49Z
changed

original description  (of Orbitoides (Lepidosemicyclina) Rutten, 1911 †) Rutten, L. M. R. (1911). On Orbitoides in the neighboorhood of the Balik Papan Bay, East-coast of Borneo. <em>Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen.</em> 13(2): 1122-1139., available online at https://www.biodiversitylibrary.org/page/13869352
page(s): p. 1135 [details]  OpenAccess publication 

original description  (of Miogypsina (Lepidosemicyclina) Mohan & Chatterji, 1956 †) Mohan, K; Chatterji, A K. (1956). Stratigraphy of the Miocene beds of Kathiawar, western India. Micropaleontology, 2 (4), 349-356
page(s): p. 351, 352 [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 large, somewhat irregularly flabelliform in outline, inequally biconvex, protruding and peripheral embryonal stage consisting of spherical protoconch, with subtriangular lip on the protoconchal stolon at one pole, and reniform deuteroconch with deuteroconchal stolons on either side of the protoconch lip that lead to the second primary auxiliary chamber, a deuteroconchal stolon at the opposite pole leads to the first primary auxiliary chamber; two sets of planispiral periembryonic chambers surround the embryo, the larger primary spiral and three inequal secondary spirals resulting in a distinct asymmetry, chambers arranged in intersecting arcs, the distinct equatorial chambers at first ogival in outline, then rhombic and finally distinctly hexagonal, up to five or six layers of flattened lateral chambers on each side of the equatorial layer, spiral canal and intraseptal canals present, surface with papillae that are larger in the apical zone over the juvenarium, and progressively smaller toward the periphery. L. Miocene (Burdigalian); Borneo; Saipan; Australia; New Zealand; India; Japan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]