Catalog - Planomalina blowi Catalog - Planomalina blowi

CATALOG OF ORIGINAL DESCRIPTIONS: Planomalina blowi Bolli 1959

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 blowi
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 blowi

Citation: Planomalina blowi Bolli 1959
taxonomic rank: Species
Type specimens: 626303
Type age (chronostrat): Aptian
Type locality: A slip-mass in the Piparo River, Central Range, Trinidad protuberans zone.
Type repository: Washington; USNM

Linked specimens: USNM-626304 USNM-626303

Current identification/main database link: Globigerinelloides blowi (Bolli, 1959)

Original Description

Shape of test planispiral, biumbilicate, involute, distinctly lobate. Wall calcareous, finely perforate. Chambers spherical, 4-5 in the last whorl, increasing rapidly in size; those of the earlier whorls usually not visible. Sutures radial, deeply depressed. Aperture a long, low slit, bordered by a rim or lip; equatorial. Relict apertures of earlier chambers of last whorl present but often not clearly visible in examined material.


Bolli, H. M. (1959c). Planktonic foraminifera from the Cretaceous of Trinidad, B. W. I. Bulletins of American Paleontology. 39(179): 253-277. gs


Planomalina blowi compiled by the pforams@mikrotax project team viewed: 25-7-2024

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Comments (2)

Le Coze

Planomalina blowi is the type species of Blowiella Kretchmar & Gorbachik, 1971

Gorbachik, T. N. (1971). О раннемеловых фораминиферах Крыма-On Early Cretaceous Foraminifers of the Crimea. Академия наук СССР Вопросы микропалеонтологии-Academy of Sciences USSR Questions of Micropaleontology. 14: 125–139., available online at

page(s): p. 135

Loeblich and Tappan (1987), and several recent authors recognize Blowiella and Globigerinelloides as two distinct genera. Do you have an ultimate reference concerning the synonymy between Blowiella and Globigerinelloides?

Jeremy Young

I suspect this is still a topic under debate but Moullade et al. 2002 discuss it at some length.