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Hastigerinoides


Classification: pf_mesozoic -> Globigerinelloididae -> Hastigerinoides
Sister taxa: Eohastigerinella, Globigerinelloides, Hastigerinoides, Pseudoschackoina,
Daughter taxa (blue => in age window 0-300Ma)



Specimens which cannot be assigned to established species

Taxonomy

Citation: Hastigerinoides Bronnimann 1952
Rank: Genus
Basionym: Hastigerinella alexanderi
Type species: Hastigerinella alexanderi Cushman, 1931
Taxonomic discussion: The generic name Hastigerinoides should be teated as masculine following ICZN Art 30.1.4.4. "A compound genus-group name ending in the suffix -ites, -oides, -ides, -odes, or -istes is to be treated as masculine unless its author, when establishing the name, stated that it had another gender or treated it as such by combining it with an adjectival species-group name in another gender form."
Brönnimann (1952) did not give any indication about the gender of his new subgenus, nor do the two species he included H. alexanderi and H. rohri n. sp. Therefore the general rule applies. [Le Coze 2017 via comment on the website]

 

Type images:

Original description: Hastigerinoides:

Entries in the Catalog of original descriptions: Hastigerinoides;

Short diagnosis: Test planispirally enrolled and involute, biumbilicate, early chambers globular and inflated, later ones radially elongate, and those of the final whorl long and tapering, resembling tubulospines; wall calcareous, finely perforate; aperture a low interiomarginal equatorial arch bordered by a distinct lip, lateral part of the aperture remaining open as relict supplementary apertures around the umbilicus on each side as new chambers are added.

Geological Range:
Last occurrence (top): within Santonian Stage (83.64-86.26Ma, top in Santonian stage). Data source: Total of range of species in this database
First occurrence (base): within Turonian Stage (89.77-93.90Ma, base in Turonian stage). Data source: Total of range of species in this database

Plot of occurrence data:

NB Plotting of Neptune data has been disabled on the Mesozoic pages because the dataset is both small and badly affected by a few sites with erroneous age models (our obs Huber, Petrizzo, Young, Nov 2016). The data can still be viewed via the range plottertool - tools menu.

References:

Brönnimann, P., (1952). Globigerinidae from the Upper Cretaceous (Cenomanian-Maestrichtian) of Trinidad, B. W. I. Bulletin of American Paleontology, 34(140): 1-70.

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


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Hastigerinoides compiled by the pforams@mikrotax project team viewed: 24-11-2017

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