Foraminifera taxon details
Bispiraloconulus Schlagintweit, Bucur & Sudar, 2019 †
1318196 (urn:lsid:marinespecies.org:taxname:1318196)
accepted
Genus
Bispiraloconulus serbiacus Schlagintweit, Bucur & Sudar, 2019 † accepted as Bispiraloconulus serbicus Schlagintweit, Bucur & Sudar, 2019 † (type by original designation)
- Species Bispiraloconulus serbicus Schlagintweit, Bucur & Sudar, 2019 †
- Species Bispiraloconulus serbiacus Schlagintweit, Bucur & Sudar, 2019 † accepted as Bispiraloconulus serbicus Schlagintweit, Bucur & Sudar, 2019 † (Nomen correctum: name incorrectly latinized (see article 32.5 ICZN))
marine, brackish, fresh, terrestrial
fossil only
masculine
Schlagintweit, F.; Bucur, I. I.; Sudar, M. N. (2019). Bispiraloconulus serbiacus gen. et sp. nov., a giant arborescent benthic foraminifer from the Berriasian of Serbia. <em>Cretaceous Research.</em> 93: 98-106., available online at https://doi.org/10.1016/j.cretres.2018.09.003
page(s): p. 100. [details] Available for editors
[request]
page(s): p. 100. [details] Available for editors
[request]
Original description Diagnosis. Large (centimeter-sized) arborescent shell with short spiral initial part, later chambers uniserial. Branches...
Original description Diagnosis. Large (centimeter-sized) arborescent shell with short spiral initial part, later chambers uniserial. Branches are cylindrical and cylindro-conical before branching. Septa thin, vaulted in the growth direction and pierced by numerous tiny foramina distributed over its entire surface. Wall agglutinated with a thin epiderm and a polygonal subepidermal network protruding only slightly into the chamber lumen. Central zone filled with bioclasts, ooids, and peloids. They are interconnected to each other both horizontally and vertically and at the roof of the chamber to the following septum by short columnar and micritic elements.
Remarks. Bolli (1960) established the new genus Bireophax for a Reophax displaying test branching. Later Bolli (1962) included Bireophax in the synonymy of Thomasinella Schlumberger, 1893. Displaying an alveolar wall structure (Arnaud-Vanneau and Prestat, 1984), Thomasinella and Bireophax are treated as two distinct genera by Loeblich and Tappan (1987) followed by Kaminski (2014). This implies that test branching is considered a generic criterion. Our Serbian specimens exhibit all characteristics of Spiraloconulus except its arborescent morphology. Therefore a new genus is established as Bispiraloconulus accordingly.
(Schlagintweit et al. (2019)). [details]
Remarks. Bolli (1960) established the new genus Bireophax for a Reophax displaying test branching. Later Bolli (1962) included Bireophax in the synonymy of Thomasinella Schlumberger, 1893. Displaying an alveolar wall structure (Arnaud-Vanneau and Prestat, 1984), Thomasinella and Bireophax are treated as two distinct genera by Loeblich and Tappan (1987) followed by Kaminski (2014). This implies that test branching is considered a generic criterion. Our Serbian specimens exhibit all characteristics of Spiraloconulus except its arborescent morphology. Therefore a new genus is established as Bispiraloconulus accordingly.
(Schlagintweit et al. (2019)). [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Bispiraloconulus Schlagintweit, Bucur & Sudar, 2019 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=1318196 on 2026-01-24
Date
action
by
original description
Schlagintweit, F.; Bucur, I. I.; Sudar, M. N. (2019). Bispiraloconulus serbiacus gen. et sp. nov., a giant arborescent benthic foraminifer from the Berriasian of Serbia. <em>Cretaceous Research.</em> 93: 98-106., available online at https://doi.org/10.1016/j.cretres.2018.09.003
page(s): p. 100. [details] Available for editors [request]
page(s): p. 100. [details] Available for editors
[request]From editor or global species database
Original description Diagnosis. Large (centimeter-sized) arborescent shell with short spiral initial part, later chambers uniserial. Branches are cylindrical and cylindro-conical before branching. Septa thin, vaulted in the growth direction and pierced by numerous tiny foramina distributed over its entire surface. Wall agglutinated with a thin epiderm and a polygonal subepidermal network protruding only slightly into the chamber lumen. Central zone filled with bioclasts, ooids, and peloids. They are interconnected to each other both horizontally and vertically and at the roof of the chamber to the following septum by short columnar and micritic elements.Remarks. Bolli (1960) established the new genus Bireophax for a Reophax displaying test branching. Later Bolli (1962) included Bireophax in the synonymy of Thomasinella Schlumberger, 1893. Displaying an alveolar wall structure (Arnaud-Vanneau and Prestat, 1984), Thomasinella and Bireophax are treated as two distinct genera by Loeblich and Tappan (1987) followed by Kaminski (2014). This implies that test branching is considered a generic criterion. Our Serbian specimens exhibit all characteristics of Spiraloconulus except its arborescent morphology. Therefore a new genus is established as Bispiraloconulus accordingly.
(Schlagintweit et al. (2019)). [details]
From editor or global species database
Image from typetaxon