Catalog - Cassigerinella spinata Catalog - Cassigerinella spinata

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.


Higher levels: pf_cat -> C -> Cassigerinella -> Cassigerinella spinata
Other pages this level: C. boudecensis, C. eocaenica, C. globolocula, C. regularis, C. spinata

Cassigerinella spinata

Citation: Cassigerinella spinata Rögl 1998, in Cicha et al. 1998
Taxonomic rank: species
Type sample (& lithostrat): lnnviertel Fonnation, Braunau Schilier;
Type age (chronostrat): Lower Miocene, Ottnangian
Type locality: Old brickyard Ranftl, Hub near Moosbach, Molasse Basin, Upper Austria
Type 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


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Cassigerinella spinata compiled by the pforams@mikrotax project team viewed: 25-1-2026

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