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Planoglobulina multicamerata


Classification: pf_mesozoic -> Heterohelicidae -> Planoglobulina -> Planoglobulina multicamerata
Sister taxa: P. acervulinoides, P. brazoensis, P. browni, P. carseyae, P. manuelensis, P. multicamerata, P. riograndensis, P. sp.,

Taxonomy

Citation: Planoglobulina multicamerata (De Klasz, 1953)
Rank: Species
Basionym: Ventilabrella multicamerata
Synonyms: Ventilabrella alpina; Planoglobulina meyerhoffi

Type images:

Original description:

Translated using Google translate from German. Original text below

Diagnosis: A species with the characteristics of the genus Ventilabrella with the following peculiarities: The number of chambers is much larger than in the other species of the genus. The two-line part is relatively small. The adult part is very flat compressed.

Description: The test is subtriangular, sometimes wider than high. After a small, only in diaphanous light clearly visible hiserialen beginning part widened it quickly. The adult stage consists of a large number of fan-shaped in a plane arranged chambers. At ¼ height of the case, where this shows its greatest thickness, these chambers are somewhat bloated. The adult chambers are separated by weakly serrated seams, some of which are unclear. The shape of the chambers is irregular. Ornamentation is almost always absent in typical individuals; at most, one occasionally notices a slight longitudinal striation, especially at the more inflated chambers of the thicker chamber portion.

Diagnose : Eine Art mit den Merkmalen der Gattung Ventilabrella mit folgenden Besonderheiten: Die Zahl der Kammern ist viel größer als bei den anderen Arten der Gattung. Der zweizeilige Teil ist verhältnismäßig klein. Der Erwachsenen-Teil ist sehr stark flach zusammengedrückt.

Beschreibung : Das Gehäuse ist subtriangular, bei manchen Eiemplaren breiter als hoch. Nach einem kleinen, nur in durchfallendem Licht deutlich sichtbaren hiserialen Anfangsteil verbreitert es sich rasch. Das Erwachsenenstadium besteht aus einer großen Anzahl fächerförmig in einer Ebene angeordneter Kammern. In ¼ Höhe des Gehäuses, dort, wo dieses seine größte Dicke zeigt, sind diese Kammern etwas aufgebläht. Die adulten Kammern sind durch schwach eingeriefte Nähte getrennt, die teilweise undeutlich verlaufen. Die Gestalt der Kammern ist unregelmäßig. Eine Ornamentierung fehlt bei typischen Individuen fast immer; höchstens bemerkt man gelegentlich eine schwache Längsstreifung, besonders an den stärker aufgeblähten Kammern des dickeren Kammeranteils.

Entries in the Catalog of original descriptions: Ventilabrella multicamerata, Ventilabrella alpina, Planoglobulina meyerhoffi

Geological Range:
Last occurrence (top): within P. hariaensis zone (66.39-67.30Ma, top in Maastrichtian stage). Data source: [copied from Chronos database]
First occurrence (base): within G. havanensis zone (74.00-75.71Ma, base in Campanian 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

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Planoglobulina multicamerata, synonyms included - Gublerina multicamerata; Planoglobulina meyerhoffi; Planoglobulina multicamerata; Pseudotextularia multicamerata; Ventilabrella alpina; Ventilabrella multicamerata; space-time plot :: Samples map :: Parent: Planoglobulina

    Character matrix

    test outline:Palmatechamber arrangement:Multiserialedge view:Compressedaperture:Multiple
    sp chamber shape:Inflatedcoiling axis:N/Aperiphery:N/Aaperture border:Thin flange
    umb chbr shape:Inflatedumbilicus:N/Aperiph margin shape:Narrowly roundedaccessory apertures:N/A
    spiral sutures:Moderately depressedumb depth:N/Awall texture:Vermiculateshell porosity:Finely Perforate: 1-2.5µm
    umbilical or test sutures:Moderately depressedfinal-whorl chambers:6.0-10.0 N.B. These characters are used for advanced search. N/A - not applicable

    References:

    de Klasz, I. (1953a). Einige neue oder wenig bekannte Foraminiferen aus der helvetischen Oberkreide der bayerischen Alpen, südlich Traunstein (Oberbayern). Geologica Bavarica. 17: 223-244. gs


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    Planoglobulina multicamerata compiled by the pforams@mikrotax project team viewed: 20-8-2019

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    Short stable page link: http://mikrotax.org/pforams/index.php?id=110396 Go to Archive.is to create a permanent copy of this page - citation notes



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