Catalog - Schackoina cushmani Catalog - Schackoina cushmani

CATALOG OF ORIGINAL DESCRIPTIONS: Schackoina cushmani Barr 1962

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 cushmani
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 cushmani

Citation: Schackoina cushmani Barr 1962
Taxonomic rank: species

Linked specimens: London, UK; NHM (PM P 44618)

Current identification/main database link: Schackoina multispinata (Cushman and Wickenden, 1930)


Original Description

Test free, nearly planispiral, loosely coiled, semi-evolute, biumbilicate; early chambers globular, radially elongate; final 1 or 2 chambers bulbous, almost polyhedral, 3 chambers in final whorl; 5 to 6 tubulospines from final whorl; earliest chamber of final whorl has 1 tubulospine, located in the median plane; second chamber has either 1 tubulospine located in the median plane or 2 tubulospines arranged on both sides of median plane; final chamber usually has 3 tubulospines, 1 located posteriorly in the median plane and the other 2 further forward on both sides of the median plane; sutures depressed, oblique, slightly curved; wall calcareous, thin, finely perforate; surface smooth; primary aperture interiomarginal, equatorial, a broad low arch; lip distinct, thin, borders entire aperture covering much of umbilici; umbilical portions of apertures of successive chambers appear to remain open as relict apertures; umbilici small, shallow.

References:

Barr, F. T. (1962). Upper Cretaceous planktonic foraminifera from the Isle of Wight, England. Palaeontology. 4(4): 552-580. gs


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Schackoina cushmani compiled by the pforams@mikrotax project team viewed: 13-3-2026

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Short stable page link: https://mikrotax.org/pforams/index.php?id=132222 Go to Archive.is to create a permanent copy of this page - citation notes



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