pforams@mikrotax - Blefuscuiana laculata pforams@mikrotax - Blefuscuiana laculata

Blefuscuiana laculata


Classification: pf_mesozoic -> Praehedbergellidae -> Blefuscuiana -> Blefuscuiana laculata
Sister taxa: B. alobata, B. cumulus, B. daminiae, B. depressa, B. implana, B. laculata, B. sp.

Taxonomy

Citation: Blefuscuiana laculata Banner, Copestake, & White, 1993
taxonomic rank: Species
Basionym: Blefuscuiana laculata Banner, Copestake, & White, 1993
Synonyms:

Type images:

Original description: Blefuscuiana laculata (sensu stricto).
Diagnosis. Characterised by having a roughly quadrangular test outline, an open umbilicus, and intercameral sutures at the periphery of the test which form angles of about 120-135 degrees; the test surface lacks perforation cones.

Entries in the Catalog of original descriptions: Blefuscuiana laculata laculata, Blefuscuiana laculata

Character matrix
test outline:Subquadratechamber arrangement:Trochospiraledge view:Concavo-convexaperture:-
sp chamber shape:Globularcoiling axis:Lowperiphery:-aperture border:-
umb chbr shape:-umbilicus:-periph margin shape:-accessory apertures:-
spiral sutures:Moderately depressedumb depth:-wall texture:-shell porosity:-
umbilical or test sutures:Moderately depressedfinal-whorl chambers:4.5-5.5 N.B. These characters are used for advanced search. N/A - not applicable

Geological Range:
Last occurrence (top): within Barremian Stage (121.40-126.50Ma, top in Barremian stage). Data source: [copied from Chronos database]
First occurrence (base): within Barremian Stage (121.40-126.50Ma, base in Barremian stage). Data source: [copied from Chronos database]

Plot of range and occurrence data:

References:

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


logo

Blefuscuiana laculata compiled by the pforams@mikrotax project team viewed: 23-6-2024

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/pforams/index.php?id=110030 Go to Archive.is to create a permanent copy of this page - citation notes



Add Comment

* Required information
Captcha Image
Powered by Commentics

Comments

No comments yet. Be the first!