pforams@mikrotax - Pseudoplanomalina cheniourensis

pforams@mikrotax - Pseudoplanomalina cheniourensis pforams@mikrotax - Pseudoplanomalina cheniourensis

Pseudoplanomalina cheniourensis

Classification: pf_mesozoic -> Planomalinidae -> Pseudoplanomalina -> Pseudoplanomalina cheniourensis
Sister taxa: P. cheniourensis, P. sp.

Lipson-B and Almogi-Labin 2003_3f18 10 12-196.JPG
DSDP Site 545-196.JPG
ODP Site 1049-196~a.JPG
ODP Site 1049-196~b.JPG
Valdorbia-196.JPG

Taxonomy

Citation: Pseudoplanomalina cheniourensis (Sigal, 1952)

taxonomic rank: Species

Basionym: Planulina cheniourensis

Taxonomic discussion: Moullade et al. 2002 erected the new genus Pseudoplanomalina for the species cheniourensis [copied from Chronos database]

Type images:

x: P. cheniourensis

Original description: Planulina cheniourensis n. sp. semble très caractéristique par son test un peu évolute el les lèvres ombilicales des loges

Translation. "Appears to be very distinctive with its slightly evolute test and the umbilical lips of the chambers."

Entries in the Catalog of original descriptions: Planulina cheniourensis

Character matrix
test outline: Circular chamber arrangement: Pseudoplanispiral edge view: Compressed aperture: Umbilical-extraumbilical
sp chamber shape: Petaloid coiling axis: Very low periphery: Single keel aperture border: Thin lip
umb chbr shape: Petaloid umbilicus: Wide periph margin shape: Narrowly rounded accessory apertures: None
spiral sutures: Weakly depressed umb depth: Shallow wall texture: Smooth shell porosity: Finely Perforate: 1-2.5µm
umbilical or test sutures: Weakly depressed final-whorl chambers: 10-0 N.B. These characters are used for advanced search. N/A - not applicable

Geological Range:
Last occurrence (top): within P. rohri zone (113.22-116.60Ma, top in Aptian stage). Data source: [copied from Chronos database]
First occurrence (base): in upper part of G. algerianus zone (80% up, 117.1Ma, in Aptian 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: Pseudoplanomalina cheniourensis, synonyms included - Planomalina cheniourensis; Pseudoplanomalina cheniourensis;
See also space-time plot :: Samples map :: Parent: Pseudoplanomalina

References:

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

Sigal, J. (1952). Apercu stratigraphique sur la micropaleontologie du Cretace. XIX Congr. géol. internat., Algers, Monographies Regionales. 1(26): 3-43. gs

Pseudoplanomalina cheniourensis compiled by the pforams@mikrotax project team viewed: 15-10-2024

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110463 Go to Archive.is to create a permanent copy of this page - citation notes

test outline:	Circular	chamber arrangement:	Pseudoplanispiral	edge view:	Compressed	aperture:	Umbilical-extraumbilical
sp chamber shape:	Petaloid	coiling axis:	Very low	periphery:	Single keel	aperture border:	Thin lip
umb chbr shape:	Petaloid	umbilicus:	Wide	periph margin shape:	Narrowly rounded	accessory apertures:	None
spiral sutures:	Weakly depressed	umb depth:	Shallow	wall texture:	Smooth	shell porosity:	Finely Perforate: 1-2.5µm
umbilical or test sutures:	Weakly depressed	final-whorl chambers:	10-0	N.B. These characters are used for advanced search. N/A - not applicable