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Leupoldina reicheli


Classification: pf_mesozoic -> Schackoinidae -> Leupoldina -> Leupoldina reicheli
Sister taxa: L. cabri, L. hexacamerata, L. pustulans, L. quinquecamerata, L. reicheli, L. sp.,

Taxonomy

Citation: Leupoldina reicheli (Bolli, 1957)
Rank: Species
Basionym: Schackoina reicheli Bolli, 1957
Taxonomic discussion: This species shows a moderate morphological variability mainly regarding (a) the number of chambers in the last whorl, from 4 to 5, (b) the shape of the first chambers in the outer whorl, (c) the elongation degree of the last chambers varying from moderately to strongly elongate, (d) the shape of the ampullae from subspherical to ovoid, and (e) the lateral profile from subsymmetrical to distinctly asymmetrical. In very rare specimens prolongations are bifurcated. [copied from Chronos database]

Type images:

Original description: Shape of test. - Early stage possibly very slightly trochospiral (usually not recognizable), later becoming planispiral, strongly stellate. Wall. - Calcareous, finely perforate. Chambers. - Early chambers globular to subglobular; the four and a half to five chambers in the last whorl very strongly elongated, each with a bulb-shaped end (very often broken off). Sutures. - Radial, depressed. Aperture. - An interiomarginal, equatorial arch, bordered by a lip; in position often slightly asymmetrical to the equatorial plane. 

Entries in the Catalog of original descriptions: Schackoina reicheli

Geological Range:
Last occurrence (top): within G. algerianus zone (118.93-122.17Ma, top in Aptian stage). Data source: [copied from Chronos database]
First occurrence (base): within L. cabri zone (123.89-125.71Ma, base in Aptian stage). Data source: [copied from Chronos database]

Plot of occurrence data:

Dec 2017 - Plotting of Neptune data has been re-enabled on the Mesozoic pages following revision of the age-models in Neptune. The data is, however, still very sparse for the Early Cretaceous

Character matrix

test outline:Stellatechamber arrangement:Pseudoplanispiraledge view:Compressedaperture:Equatorial
sp chamber shape:Elongatecoiling axis:Very lowperiphery:N/Aaperture border:Thin lip
umb chbr shape:Elongateumbilicus:Wideperiph margin shape:Narrowly roundedaccessory apertures:Relict
spiral sutures:Strongly depressedumb depth:Shallowwall texture:Smoothshell porosity:
umbilical or test sutures:Strongly depressedfinal-whorl chambers:4.0-5.0 N.B. These characters are used for advanced search. N/A - not applicable

References:

Bolli, H. M. (1957c). The foraminiferal genus Schackoina Thalmann, emended, and Leupoldina, n. gen. in the Cretaceous of Trinidad, B. W. I. Eclogae Geologicae Helvetiae. 50(2): 271-278. gs V O


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Leupoldina reicheli compiled by the pforams@mikrotax project team viewed: 28-9-2020

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Short stable page link: http://mikrotax.org/pforams/index.php?id=110313 Go to Archive.is to create a permanent copy of this page - citation notes



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