CATALOG OF ORIGINAL DESCRIPTIONS: Sigalia deflaensis rugocostata Nederbragt 1991

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 -> Sigalia -> Sigalia deflaensis rugocostata
Other pages this level: S. bejaouensis, S. carpatica, S. deflaensis rugocostata, S. incipiens, S. proliferans,

Sigalia deflaensis rugocostata

Citation: Sigalia deflaensis rugocostata Nederbragt 1991
Rank: sub-species
Type locality: Oued A. Kouka, SW of El Kef, Tunisia
Type age: Santonian
Holotype Repository: Washington; USNM
Type & figured specimens: Not given

Linked specimens: USNM-463436

Current identification/main database link: Sigalia rugocostata Nederbragt, 1991


Original Description
Early chambers biserial, gradually to rapidly increasing in size when added, followed by up to 6 sets of multiserial chambers. Individual chambers and chamberlets subglobular, wider than high or deep; sutures of earlier chambers raised above the surface of the test. Chamber surface as well as sutures covered by thin to thick costae; ornamentation and raised sutures more strongly developed on the early part of the test. Apertures a simple arc, bordered by small flanges.

References:

Nederbragt, A. J. (1991). Late Cretaceous biostratigraphy and development of Heterohelicidae (planktic foraminifera). Micropaleontology. 37: 329-372. gs :: ::


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Sigalia deflaensis rugocostata compiled by the pforams@mikrotax project team viewed: 8-8-2020

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