nmn

Planoglobulina


Classification: pf_mesozoic -> Heterohelicidae -> Planoglobulina
Sister taxa: Heterohelix, Spiroplecta ⟩⟨ Braunella, Hendersonites, Huberella, Laeviheterohelix, Planoheterohelix, Protoheterohelix, Pseudoguembelina, Pseudotextularia ⟩⟨ Planoglobulina, Ventilabrella, Gublerina, Praegublerina, Sigalia, Racemiguembelina ⟩⟨ Lunatriella, Rectoguembelina, Zeauvigerina
Daughter taxa: (blue => in age window 0-800Ma)
Planoglobulina acervulinoides

Planoglobulina brazoensis

Planoglobulina browni

Planoglobulina carseyae

Planoglobulina manuelensis

Planoglobulina multicamerata

Planoglobulina riograndensis

Planoglobulina sp.
Specimens which cannot be assigned to established species

Taxonomy

Citation: Planoglobulina Cushman 1927
Rank: Genus
Basionym: Guembelina acervulinoides
Type species: Guembelina acervulinoides Egger, 1902
Taxonomic discussion: A neotype (USNM 170316) was designated for Planoglobulina acervulinoides (Egger) from the type locality by S. E. Martin, 1972 (*2051), p. 81.

Original description: Test with the earliest chambers in the microspheric form planospiral, followed by a series arranged biserially and in the adult by a series ofglobular chambers spread out fan shaped or even partially extending back toward the earlier chambers on either side, the later chambers in a single plane; wall calcareous, perforate.

Entries in the Catalog of original descriptions: Planoglobulina

Distinguishing features: Test flabelliform, biserial stage followed by a proliferation of chambers in the same plane. Medium to coarse costae.

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Total of range of species in this database
First occurrence (base): within Santonian Stage (83.64-86.26Ma, base in Santonian stage). Data source: Total of range of species in this database

Plot of range and occurrence data:

References:

Loeblich, A. R. & Tappan, H. (1988). Foraminiferal Genera and Their Classification (Volume I-II). Van Nostrand Reinhold Co., New York. 1-1059. gs


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Planoglobulina compiled by the pforams@mikrotax project team viewed: 25-10-2020

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Short stable page link: http://mikrotax.org/pforams/index.php?id=110390 Go to Archive.is to create a permanent copy of this page - citation notes



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