Catalog - Schackoina tappanae Catalog - Schackoina tappanae

CATALOG OF ORIGINAL DESCRIPTIONS: Schackoina tappanae Montanaro Gallitelli 1955

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 -> S -> Schackoina -> Schackoina tappanae
Other pages this level: S. armata, S. cabri, S. cenomana alberti, S. cenomana bicornis, S. cenomana masellae, S. cenomana pentagonalis, S. cenomana trinacriae, S. cenomana utriculus, S. cushmani, S. francogallicorum, S. gandolfii, S. jeanneti, S. leckiei, S. moliniensis, S. pentagonalis, S. pentagonalis aperta, S. primitiva, S. pustulans pustulans, S. pustulans quinquecamerata, S. reicheli, S. sellaeforma, S. tappanae, S. trifolia

Schackoina tappanae

Citation: Schackoina tappanae Montanaro Gallitelli 1955
Taxonomic rank: species
Type repository: Washington; USNM

Linked specimens: USNM-4811

Current identification/main database link: Schackoina cenomana (Schacko, 1897)


Original Description

Test slightly trochoid, biumbilicate. Chambers six or seven, in two nearly planispiral whorls, the first whorl rarely visible. Final whorl consists of three flask-shaped chambers, planispirally arranged in all the specimens observed. Sutures very deeply depressed. The three latest chambers are always very unequal in size. All tubulospines radially disposed in the plane of coiling and rather narrow from their base. Very rarely a short radial tubulospine occurs in the latest chamber of the first whorl. Aperture arcuate, at the base of the final chamber, with a strong lip extending laterally nearly to the umbilicus. The thickness of the test is variable, as shown by examination in castor oil at a magnification of 400 times. The surface may be roughened, rarely very finely hispid. The first whorl is more or less visible depending upon the thickness of the test.

References:

Montanaro Gallitelli, E. (1955a). Schackoina from the Upper Cretaceous of the northern Apennines, Italy. Micropaleontology. 1(2): 141-145. gs


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Schackoina tappanae compiled by the pforams@mikrotax project team viewed: 10-5-2026

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