CATALOG OF ORIGINAL DESCRIPTIONS: Pseudohastigerinoides Georgescu 2012

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> P -> Pseudohastigerinoides
Other pages this level: << < Praeplanctonidae, Praetenuitella, Proliferania, Prosphaeroidinella, Protentella, Protentelloides, Protoheterohelix, Pseudocaucasina, Pseudoclavihedbergella, Pseudoglobigerinella, Pseudogloboquadrina, Pseudogloborotalia, Pseudoguembelina, Pseudoguembelitria, Pseudohastigerina, Pseudohastigerinoides, Pseudomenardella, Pseudoplanomalina, Pseudoschackoina, Pseudotextularia, Pseudothalmanninella, Pseudoticinella, Pullenia, Pulleniatina, Pulleniatininae, Pulvinulina, Pylodexia,

Pseudohastigerinoides

Citation: Pseudohastigerinoides Georgescu 2012
Rank: Genus
Type locality: Cenomanian-lower Turonian (from the upper part of the T. globotruncanoides Biozone to the lower part of H. helvetica Biozone).Geographic distribution. Europe (Switzerland, France, Italy, Romania), Caribbean region (Puerto Rico Trench), northern Africa (Tunisia), Australia and eastern Indian Ocean (Exmouth Plateau).
Type age: Cenomanian-lower Turonian

Current identification/main database link:


Original Description

Type species.- Schackoina moliniensis Reichel, 1948, by original designation.


Species included. IS: Pseudohastigerinoides gandolfii (Reichel, 1948) and FDS: P. moliniensis (Reichel, 1948).

Diagnosis.  Schackoinid  planktic  foraminifera  with  strongly  elongate  chambers resembling tubulospines in the adult stage.

Description. Test is very low trochospiral in the early stage and planispiral in the adult stage. Early chambers are globular and subglobular, those of the final whorl conical or highly conical, and occasionally flask-like, the last formed one or two strongly radially elongate, resembling tubulospines; there is one chamber extension on each chamber in P. gandolfii and two or three elongate extensions, the two anterior ones symmetrically arranged with respect to the equatorial plane in P. moliniensis. Sutures are distinct, depressed, straight and radial on both test sides. Test is symmetrical in edge view; an equatorial groove developed on the chambers with symmetrically developed chamber extensions occurs in P. moliniensis. Aperture is a low arch at the base of the last-formed chamber, equatorial in position, and bordered by a narrow imperforate lip; relict periapertural structures occasionally occur in the umbilici. Chamber ornamentation consists of scattered dome-like pustules, which are concentrated around the umbilici, and are symmetrically developed over the two test sides. Test wall is calcitic, hyaline, simple and perforate; pores are simple and with circular outline.


Etymology: The Greek prefix “pseudo-“ (=false) is added to the pre-existing genus name Hastigerinoides, invoking the similarities in the general test architecture between the two genera.

Extra details from original publication
Remarks. Pseudohastigerinoides differs from any other schackoinid planktic foraminifer mainly by the last-formed chambers, which are strongly elongate resembling tubulospines, rather than having radially elongate chambers with one distal projection or tubulospines.

Editors' Notes
Neither the type species (Pseudohastigerinoides gandolfii) nor the other included species (P. moliniensis) indicate gender, so the genus should, by default, by treated as masculine (following ICZN Art  30.1.4.4)

References:

Georgescu, M. D. (2012a). Morphology, taxonomy, stratigraphic distribution and evolutionary classification of the schackoinid planktic foraminifera (late Albian- Maastrichtian, Cretaceous). In, Bailey, D. R. , Howard, S. E. , (ed.) Deep-sea marine biology, geology, and human impact. Nova Publishers, New York 1-62. gs


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Pseudohastigerinoides compiled by the pforams@mikrotax project team viewed: 7-12-2019

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