pforams@mikrotax - Hastigerinoides

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Hastigerinoides

Classification: pf_mesozoic -> Globigerinelloididae -> Hastigerinoides
Sister taxa: Eohastigerinella, Globigerinelloides, Hastigerinoides, Pseudoschackoina,

Daughter taxa: (blue => in age window 0-800Ma)
			Hastigerinoides alexanderi
			Hastigerinoides atlanticus
			Hastigerinoides clavatus
			Hastigerinoides sp. 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 Bronnimann 1952: See entry for the sub-genus

Entries in the Catalog of original descriptions: Hastigerinoides;

Distinguishing features: 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:

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

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Globigerinelloididae

References:

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

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

Hastigerinoides compiled by the pforams@mikrotax project team viewed: 21-5-2019

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Short stable page link: http://mikrotax.org/pforams/index.php?id=110229 Go to Archive.is to create a permanent copy of this page - citation notes

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