CATALOG OF ORIGINAL DESCRIPTIONS: Cassigerinella spinata Rögl 1998, in Cicha et al. 1998
This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.
Citation: Cassigerinella spinata Rögl 1998, in Cicha et al. 1998Taxonomic rank: speciesType sample (& lithostrat): lnnviertel Fonnation, Braunau Schilier;Type age (chronostrat): Lower Miocene, OttnangianType locality: Old brickyard Ranftl, Hub near Moosbach, Molasse Basin, Upper AustriaType repository: Vienna; Naturhistorische Museum
Current identification:
Original Description Test of the pianktonic species tiny; oval outline, laterally compressed, periphery lobate, in frontal view rounded; planispirally enroIIed with 7-10, mostly 9 alternating chambers in the final whorl. Chambers oviform, inflated, distinctly separated by incised sutures; rapidly increasing in the younger part of the test, and thereby producing a distinct change in width between the older and younger haIf of the final coil. Aperture an elongate oblique loop in the face of the final chamber, bordered by a non-continuous everted thin lip. Wall very thin, microperforate; final chamber smooth, older chambers with distinct conical pore-mounds, surrounding a large pore; in the older part ofthe test these mound commonly closed, forming protruding spikes Extra details from original publication Remarks: The new species has some similarities with Cassigerinella boudecensis Pokomy, 1955, such as the development of pore-mounds. However. in C. spinata these mounds are higher and grow into distinct spikes on the peripherial side of the older chambers. Moreover, in apertural view the final whorl exhibits C. spinata differentiated into a distinctly compressed earlier part and an inflated later part. Also, the mean size of test is bigger in C. boudecensis. The maximum diameter of C. spinata ranges from 0.10 to 0.14mm (mean 0.12 mm) ; in C. boudecensis, from 0.13 and 0.17 mm (with a mean of 0.15 mm) .
References:
Cicha, I., Rögl, F., Rupp, C. & Ctyroká, J. (1998). Oligocene-Miocene foraminifera of the central Paratethys. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft. 549: 1-325. gs
Cassigerinella spinata compiled by the pforams@mikrotax project teamviewed: 25-1-2026
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