WoRMS taxon details
original description
Orbigny, A. D. d'. (1839). Foraminifères, in de la Sagra R., Histoire physique, politique et naturelle de l'ile de Cuba. <em>A. Bertrand.</em> 1-224., available online at https://books.google.pt/books?id=KpVeAAAAcAAJ&pg page(s): p. 132 [details]
original description
(of Sigmomorpha Cushman & Ozawa, 1928) Cushman, J. A.; Ozawa, Y. (1928). An outline of a revision of the Polymorphinidae. <em>Contributions from the Cushman laboratory for foraminiferal research.</em> 4(1): 13-21., available online at https://cushmanfoundation.allenpress.com/Portals/_default/files/pubarchive/cclfr/4cclfr1.pdf page(s): p. 17 [details] Available for editors [request]
original description
(of Polymorphina (Guttuline) d'Orbigny, 1826) Orbigny, A. D. d'. (1826). Tableau méthodique de la classe des Céphalopodes. <em>Annales des Sciences Naturelles.</em> vol. 7: 96-169, 245-314., available online at http://biodiversitylibrary.org/page/5753959 page(s): p. 266 [details]
original description
(of Polymorphina (Guttulina) Reuss, 1845) Reuss, A. E. (1845). Die Versteinerungen der böhmischen Kreideformation. <em>E. Schweizerbart'sche Verlagsbuchhandlung und Druckerei, Stuttgart.</em> 1: 1-58., available online at https://www.biodiversitylibrary.org/page/31179286 [details]
original description
(of Sigmomorpha (Sigmomorpha) Cushman & Ozawa, 1928) Cushman, J. A.; Ozawa, Y. (1928). An outline of a revision of the Polymorphinidae. <em>Contributions from the Cushman laboratory for foraminiferal research.</em> 4(1): 13-21., available online at https://cushmanfoundation.allenpress.com/Portals/_default/files/pubarchive/cclfr/4cclfr1.pdf [details] Available for editors [request]
basis of record
Gross, O. (2001). Foraminifera, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 60-75 (look up in IMIS) [details]
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 [request]
From editor or global species database
Diagnosis Test ovate to elongate, chambers inflated, added spirally in five planes, successive chambers 144¡ apart and each extending farther distally while strongly overlapping preceding ones proximally, sutures distinct, depressed; wall calcareous, hyaline, radial, surface smooth; aperture terminal, radiate. M. Jurassic (Bathonian) to Holocene; cosmopolitan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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