Catalog - Planomalina saundersi Catalog - Planomalina saundersi

CATALOG OF ORIGINAL DESCRIPTIONS: Planomalina saundersi 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 saundersi
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 saundersi

Citation: Planomalina saundersi Bolli 1959
taxonomic rank: Species
Type specimens: 626307
Type locality: In front of the estate home on the Maridale Estate, Eastern Central Range, Trinidad, TWI.
Type repository: Washington; USNM

Linked specimens: USNM-626307 USNM-626306 USNM-626305

Current identification/main database link: Pseudoschackoina saundersi (Bolli, 1959)

Original Description

Shape of test planispiral, stellate, biumbilicate, evolute. Wall calcareous, finely perforate. Chambers spherical in early stage, in last whorl becoming more and more elongate and pointed at the outer end; 12-15 chambers arranged in 2.5 whorls. The 5-6 chambers of the last whorl increase fairly rapidly in size. The position of the last chamber is often slightly oblique. Sutures radial, 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 saundersi compiled by the pforams@mikrotax project team viewed: 21-7-2024

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Comments (2)

Le Coze

Planomalina saundersi is the type species of Pseudoschakoina Verga & Premoli Silva, 2005

Pseudoschakoina is a junior synonym of Globigerinelloides? If you have a ref. for the synonymy, could you please indicate it?

Jeremy Young(UK)

Well, whether a new combination is followed or not is a subjective decision, but in this case I think it is simply the case that updates from Verga & Premoli Slva w005 have not all been made. A quick search suggests the combination Pseudoschackoina saundersi is widely used so I will adjust the main database.