CATALOG OF ORIGINAL DESCRIPTIONS: Blefuscuiana occulta quinquecamerata Banner and Desai 1988

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 -> B -> Blefuscuiana -> Blefuscuiana occulta quinquecamerata
Other pages this level: B. albiana, B. aptiana depressa, B. aptiana implana, B. aptiana orientalis, B. daminiae, B. excelsa cumulus, B. globigerinellinoides lobulata, B. hexacamerata, B. kuznetsovae, B. laculata, B. laculata alobata, B. laculata laculata, B. mitra, B. multicamerata, B. occulta perforocculta, B. occulta quinquecamerata, B. praesimilis, B. rudis, B. speetonensis, B. speetonensis tunisiensis, B. whittakeri,

Blefuscuiana occulta quinquecamerata

Citation: Blefuscuiana occulta quinquecamerata Banner and Desai 1988
Rank: sub-species
Type locality: Speeton Cliff, Yorkshire, UK
Type age: Aptian, Lepoldina cabri Zone.
Holotype Repository: London, UK; NHM
Type & figured specimens: PI. 7, figs. 9-11.; BMNH P 52092.

Linked specimens: London, UK; NHM (PM P 52092) London, UK; NHM (PM PF 52092)

Current identification/main database link: Hedbergella occulta Longoria 1974

Original Description
This subspecies differs from the typical Blefuscuiana occulta (Hedbergella occulta Longoria, 1974) in possessing 5 to 51/2 rapidly enlarging chambers in the final whorl, compared to the six to seven chambers per whorl of the typical form of the species. On the spiral side, the height of the last chamber is about 45% of the total test diameter, compared to about 30% in B. occulta s. s.

Extra details from original publication
Remarks. This subspecies has been found by us only in the Leupoldina cabri zone (sample 8109) of Speeton and it has not been recorded yet from higher horizons. It appears not to have been observed by Longoria (1974) in his assemblages from the Middle and Late Aptian either of southern Europe or Mexico. It may be restricted to the Boreal realm.


Banner, F. T. & Desai, D. (1988). A review and revision of the Jurassic-Early Cretaceous Globigerinina,with especial reference to the Aptian assemblages of Speeton (North Yorkshire, England). Journal of Micropalaeontology. 7: 143-185. gs :: ::

Banner, F. T., Copestake, P. & White, M. R. (1993). Barremian-Aptian Praehedbergellidae of the North Sea area: a reconnaisance. Bulletin of the Natural History Museum, London (Geology). 49: 1-30. gs :: ::


Blefuscuiana occulta quinquecamerata compiled by the pforams@mikrotax project team viewed: 4-6-2020

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