Catalog - Planomalina rowei Catalog - Planomalina rowei

CATALOG OF ORIGINAL DESCRIPTIONS: Planomalina rowei Barr 1962

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 -> Planomalina -> Planomalina rowei
Other pages this level: P. alvarezi, P. apsidostroba, P. blowi, P. caseyi, P. ehrenbergi, P. maridalensis, P. mauryae, P. mendezensis, P. praebuxtorfi, P. pulchella, P. rowei, P. saundersi, P. yaucoensis

Planomalina rowei

Citation: Planomalina rowei Barr 1962
taxonomic rank: Species
Type specimens: holotype 44609; paratype 44610
Type sample (& lithostrat): Upper Chalk
Type age (chronostrat): Upper Cretaceous, Senonian, Micraster coranguinum Zone (Santonian-Campanian)
Type locality: Culver Cliff, just south of White Cliff Bay, east central coast of Isle of Wight
Type repository: London, UK; NHM

Linked specimens: London, UK; NHM (PM P 44609) London, UK; NHM (44610)

Current identification/main database link:


Original Description

Test free, planispiral with slightly trochoid initial whorl, biumbilicate, semi-evolute, loosely coiled containing approximately 2 whorls; periphery somewhat rectangular, lobulate; chambers subglobular to globular, final chamber radially elongate; final whorl contains 4.5 to 5 chambers; sutures distinct, radial, depressed, very slightly curved; wall calcareous, thin, finely perforate; surface finely hispid; umbilici shallow; aperture interiomarginal, equatorial, broad low arch extending back along both umbilical margins to the septum; porticus distinct, thin, borders entire aperture; umbilical portions of apertures of successive chambers remain open as relict apertures.

Editors' Notes
Possibly a junior synonym of G. asper

References:

Barr, F. T. (1962). Upper Cretaceous planktonic foraminifera from the Isle of Wight, England. Palaeontology. 4(4): 552-580. gs


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Planomalina rowei compiled by the pforams@mikrotax project team viewed: 19-6-2024

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Short stable page link: https://mikrotax.org/pforams/index.php?id=131966 Go to Archive.is to create a permanent copy of this page - citation notes



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