Foraminifera taxon details
Rotalispirella Consorti, Villalonga & Caus, 2017 †
1047744 (urn:lsid:marinespecies.org:taxname:1047744)
accepted
Genus
marine, brackish, fresh, terrestrial
fossil only
Consorti, L., Villalonga, R., Caus, E. (2017). New Rotaliids (benthic foraminifera) from the Late Cretaceous of the Pyrenees in northeastern Spain. <em>The Journal of Foraminiferal Research.</em> 47: 284-293. [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Rotalispirella Consorti, Villalonga & Caus, 2017 †. Accessed at: https://marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=1047744 on 2024-04-23
Date
action
by
original description
Consorti, L., Villalonga, R., Caus, E. (2017). New Rotaliids (benthic foraminifera) from the Late Cretaceous of the Pyrenees in northeastern Spain. <em>The Journal of Foraminiferal Research.</em> 47: 284-293. [details]
From editor or global species database
Diagnosis Small-sized, very low trochospiral perforated shell. The dorsal side is flat and sutures between whorls are limbate. Ventral side is flat to convex and largely occupied by oblique folia and thin foliar piles. Consecutive folia are superposed like the blade of a propeller while foliar piles appear sometimes adaxially fused. The first whorl is composed of double-keeled chambers arranged in a low trochospire; these chambers possess a rectangular or slightly trapezoidal outline in transverse section. Successive whorls are built by trapezoidal chambers in transverse cuts, appearing trapezoidal to triangular and slightly rounded in axial section, with an acute and keeled periphery; keels reduce gradually from two to one during ontogeny. An umbilical plate separates the chamber lumen from the foliar chamberlet. The canal system is formed by the spiral interlocular space and is constrained by subsequent folia. Intraseptal interlocular spaces are also present. [details]