pforams@mikrotax - Pseudotextularia pforams@mikrotax - Pseudotextularia


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

Pseudotextularia intermedia

Pseudotextularia nuttalli

Pseudotextularia sp.
Specimens which cannot be assigned to established species


Citation: Pseudotextularia Rzehak 1891
taxonomic rank: Genus
Type species: Cuneolina elegans Rzehak, 1891
Taxonomic discussion: A neotype (Natural History Museum, Vienna, Geol.-Palaeont. Coln. MI-465) was designated (S. Nash, 1981, *2231, p. 74) for Pseudotextularia elegans (Rzehak) from the type locality.

Original description: Mit der Gattung Cuneolina, wie sie ursprünglich von d'Orbigny aufgestellt wurde, lässt sich unsere Form ohne Zwang nicht vereinigen. Sie weicht aber auch von den typischen Textularien so weit ab, dass die Aufstellung einer neuen Gattung — Pseudotextularia — gerechtfertigt sein dürfte. Es ist nicht unmöglich, dass die von verschiedenen Autoren beschriebenen tri- und multiserialen Textularien ebenfalls hieher gehören.

Entries in the Catalog of original descriptions: Pseudotextularia

Distinguishing features:
Parent taxon (Heterohelicidae): Aperture symmetrical, ranging from a low slit to a high arch at the base of the final chamber, becoming terminal in uniserial taxa.
This taxon: Adult biserial chambers expanded such that test breadth is greater than width in side view.

Test subtriangular in outline, with biserially arranged, inflated chambers compressed parallel to the line of junction between the two series of chambers so that the test appears broader in apertural or edge view than from the sides with the zigzag suture between chambers, sutures depressed; wall calcareous, finely perforate, surface with longitudinal, slightly irregular to discontinuous fine to medium coarse costae; aperture a broad low to medium arched basal opening bordered by a narrow lip.

Geological Range:
Last occurrence (top): at top of P. hariaensis zone (100% up, 66.4Ma, in Maastrichtian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within D. concavata zone (85.60-89.75Ma, base in Turonian stage). Data source: Total of ranges of species in this database

Plot of range and occurrence data:


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


Pseudotextularia compiled by the pforams@mikrotax project team viewed: 24-7-2024

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