Foraminifera taxon details
Pseudorbitolina H. Douvillé, 1910 †
739366 (urn:lsid:marinespecies.org:taxname:739366)
accepted
Genus
Pseudorbitolina marthae Douvillé, 1910 † (type by original designation)
- Species Pseudorbitolina marthae Douvillé, 1910 †
- Species Pseudorbitolina schroederi Luger, 2018 †
- Species Pseudorbitolina cubensis Cushman & Bermúdez, 1936 † accepted as Tschoppina cubensis (Cushman & Bermúdez, 1936) † accepted as Fabiania cubensis (Cushman & Bermúdez, 1936) † (Type species of Tschoppina)
marine, brackish, fresh, terrestrial
fossil only
feminine
Douvillé, H. (1910). La Craie et le Tertiaire des environs de Royan. <em>Bulletin de la Société géologique de France.</em> (4)10(1/2): 51-61., available online at https://www.biodiversitylibrary.org/page/31096570
page(s): p. 57 [details]
page(s): p. 57 [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Pseudorbitolina H. Douvillé, 1910 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=739366 on 2024-05-02
Date
action
by
original description
Douvillé, H. (1910). La Craie et le Tertiaire des environs de Royan. <em>Bulletin de la Société géologique de France.</em> (4)10(1/2): 51-61., available online at https://www.biodiversitylibrary.org/page/31096570
page(s): p. 57 [details]
page(s): p. 57 [details]
From editor or global species database
Diagnosis Test circular in outline, 2 mm to 3 mm in diameter, convexoconcave, bilocular embryonal apparatus that may be broken open or eroded from the surface appears as a somewhat swollen apex on the convex spiral side, followed by a very short spirally enrolled stage and then by numerous cyclic chambers, marked at the exterior by concentric sutures or lines of growth, on worn or eroded specimens chambers are seen to be finely subdivided radially into chamberlets, concave side with convex outer marginal band at the periphery marked by radial striations and terminating at a strongly inflated shoulder that forms a swollen ring, within the ring the central part of the test is strongly concave and may show indications of the sutures between the cyclic chambers, chamber interior with exoskeletal beams and rafters that form a subepidermal mesh beneath the outer wall, a median zone where the longer radial beams separate the chamberlets of the cyclic chambers, thickening toward the lower side of the test but leaving a large opening that results in an undivided zone adjacent to the ventral inflated area and provides a communication between all chamberlets of a single chamber; wall very finely agglutinated, of microgranular calcite; aperture consists of a single row of openings at the outer margin of the circular swelling of the concave side or rarely may be at the crest of the swelling, other smaller pores occur in the thickened axial partitions, and larger ones connect each undivided zone to the exterior or to the undivided zone of the preceding chamber. U. Cretaceous (Campanian); France. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]