pforams@mikrotax - Biticinella breggiensis

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Biticinella breggiensis

Classification: pf_mesozoic -> Rotaliporidae -> Biticinella -> Biticinella breggiensis
Sister taxa: B. breggiensis, B. subbreggiensis, B. sp.

ODP Site 1050-10~b.JPG
Lipson-B and Almogi-Labin 2003_6f1-10.JPG
Postuma 1971 p015-4.JPG
Postuma 1971 p015-7.JPG

Taxonomy

Citation: Biticinella breggiensis (Gandolfi, 1942)

Rank: Species

Basionym: Anomalina breggiensis

Taxonomic discussion: Accessory apertures on umbilical and spiral sides. Accessory apertures are rarely seen on the spiral side unlike the umbilical side where they are always present. Slightly pustulose wall with conspicuous perforation.

Type images:

holotype: A. breggiensis
x: A. breggiensis
x: A. breggiensis
x: A. breggiensis

Original description: Translated from Italian: "Shell of scaphoid shape, early chambers coiled trochospiral and later become planispiral, peripheral margin wide and rounded, chambers regularly increasing in size, wide, low and a little convex, radial sutures, straight, weakly depressed; Last chamber somewhat convex, aperture semilunar and wide opening in front of the last chamber. Biumbilicate, coiling moderately involute with the external chambers that cover part of the internal ones. Shell with particularly coarse pores, so that the appearance is very rough. Number of final whorl chambers 9-10."

Entries in the Catalog of original descriptions: Anomalina breggiensis

Geological Range:
Last occurrence (top): within P. appenninica zone (100.50-101.92Ma, top in Albian stage). Data source: [copied from Chronos database]
First occurrence (base): within T. praeticinensis zone (106.98-107.39Ma, base in Albian stage). Data source: [copied from Chronos database]

Plot of range and occurrence data:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
Taxon plotted: Biticinella breggiensis, synonyms included - Biticinella breggiensis; Globigerinelloides breggiensis; Ticinella breggiensis;
See also space-time plot :: Samples map :: Parent: Biticinella

Character matrix

test outline:	Circular	chamber arrangement:	Pseudoplanispiral	edge view:	Hourglass	aperture:	Equatorial
sp chamber shape:	Inflated	coiling axis:	Very low	periphery:	N/A	aperture border:	Thick porticus
umb chbr shape:	Inflated	umbilicus:	Narrow	periph margin shape:	Broadly rounded	accessory apertures:	Umbilical
spiral sutures:	Moderately depressed	umb depth:	Deep	wall texture:	Moderately pustulose	shell porosity:	Macroperforate: >2.5µm
umbilical or test sutures:	Moderately depressed	final-whorl chambers:	7.0-9.0	N.B. These characters are used for advanced search. N/A - not applicable

References:

Gandolfi, R. (1942). Ricerche micropaleontologiche e stratigraphfiche sulla Scaglia e sul flysch Cretacici dei Dintorni di Balerna (Canton Ticino). Rivista Italiana di Paleontologia. 48: 1-160. gs

Lipson-Benitah, S. & Almogi-Labin, A. (2004). Aptian planktonic foraminifera from Israel. Israel Journal of Earth Sciences. 53(1): 27-46. gs

Postuma, J. A. (1971). Manual of planktonic foraminifera. Elsevier for Shell Group, The Hague. 1-406. gs

Biticinella breggiensis compiled by the pforams@mikrotax project team viewed: 7-3-2021

Taxon Search:

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110021 Go to Archive.is to create a permanent copy of this page - citation notes

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