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Leupoldina quinquecamerata


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

Taxonomy

Citation: Leupoldina quinquecamerata (Bolli, 1957)
Rank: Species
Basionym: Schackoina pustulans quinquecamerata Bolli, 1957

Type images:

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

Entries in the Catalog of original descriptions: Schackoina pustulans quinquecamerata

Geological Range:
Last occurrence (top): within L. cabri zone (123.89-125.71Ma, 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:Narrowperiph margin shape:Moderately roundedaccessory apertures:Relict
spiral sutures:Strongly depressedumb depth:N/Awall texture:Smoothshell porosity:
umbilical or test sutures:Strongly depressedfinal-whorl chambers:5.0-5.5 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 quinquecamerata compiled by the pforams@mikrotax project team viewed: 20-9-2020

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Short stable page link: http://mikrotax.org/pforams/index.php?id=110312 Go to Archive.is to create a permanent copy of this page - citation notes



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