Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
Hastigerinoides alexanderi | ||||
![]() | Hastigerinoides atlanticus | |||
![]() | ![]() | Hastigerinoides clavatus | ||
Hastigerinoides sp. Specimens which cannot be assigned to established species |
Taxonomy
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]
Original description: 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 range and occurrence data:
Brönnimann, P. (1952c). Globigerinidae from the Upper Cretaceous (Cenomanian-Maestrichtian) of Trinidad, B. W. I. Bulletins of American Paleontology. 34(140): 1-70. gs Loeblich, A. R. & Tappan, H. (1988). Foraminiferal Genera and Their Classification (Volume I-II). Van Nostrand Reinhold Co., New York. 1-1059. gsReferences:
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Hastigerinoides compiled by the pforams@mikrotax project team viewed: 28-1-2021
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 |