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Current identification:
Original Description
Size:
Etymology:
Extra details from original publication
This taxon resembles Paraticinella eubejaouaensis in gross morphology concerning the number of chambers in the last whorl, their gradual size increase, globularity, loose coiling in a low trochospire, wide umbilicus, and presence of straight, depressed sutures. This similarity may account for the lumping of the holotype and paratype of Sigal’s (1966) Ticinella bejaouaensis into a single species. On the other hand, the presence of true umbilical supplementary apertures and the typical Ticinella wall surface prevent consideration of this taxon as congeneric with P. eubejaouaensis. It differs from Ticinella primula Luterbacher, 1963, with which it shares a flat trochospire, by having a larger size, more numerous chambers that are more loosely coiled, at least 8 and up to 10 chambers that gradually increase in size as added in the last whorl (instead of an average of 7 chambers), an umbilical area that tends to be larger, and a wall surface with strong ornamentation close to that of the advanced ticinellids (see Pl. 3). In contrast, the wall surface of T. primula is only slightly rugose.
This taxon differs from the coeval Ticinella roberti plexus by having a flat to very low, loosely coiled trochospire, a much larger and shallow umbilicus, and a very gradual increase in size of the globular chambers throughout the last whorl. It differs from Ticinella praeticinensis by the absence of a pinched margin. In conclusion, it is our opinion that the taxon described above belongs to a new species, here named Ticinella moulladei n. sp.
Occurrence. It is associated with Biticinella breggiensis and Ticinella roberti in upper Albian strata from Madagascar and Spain.
Caron, M. (1985). Cretaceous planktic foraminifera. In, Bolli, H. M., Saunders, J. B. & Perch-Nielsen, K. (eds) Plankton Stratigraphy. CUP, Cambridge 17-86. gs Premoli Silva, I., Caron, M., Leckie, R. M., Petrizzo, M. R., Soldan, D. & Verga, D. (2009). Paraticinella n. gen. and taxonomic revision of Ticinella bejaouaensis Sigal, 1966. Journal of Foraminiferal Research. 39: 126-137. gs Sigal, J. (1966). Contribution á une monographie des Rosalines. I. Le genre Ticinella Reichel, souche des Rotalipores. Eclogae Geologicae Helvetiae. 59: 185-217. gs OReferences:
Ticinella moulladei compiled by the pforams@mikrotax project team viewed: 12-10-2024
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