Catalog - Planomalina ehrenbergi Catalog - Planomalina ehrenbergi

CATALOG OF ORIGINAL DESCRIPTIONS: Planomalina ehrenbergi 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 ehrenbergi
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 ehrenbergi

Citation: Planomalina ehrenbergi Barr 1962
taxonomic rank: Species
Type specimens: P44608
Type sample (& lithostrat): Upper Chalk
Type age (chronostrat): Senonian, Micraster coranguinum Zone
Type locality: Culver Cliff, just south of Whitecliff Bay, 2.5 miles NE of Sandown, 2 miles SE of Brading, east-central coast of the Isle of Wight, England
Type repository: Washington; USNM

Linked specimens: London, UK; NHM (PM P 44608) USNM-167842

Current identification/main database link: Planohedbergella yaucoensis (Pessagno, 1960)


Original Description

Test free, planispiral with slightly trochoid initial whorl, biumbilicate, semi-evolute, periphery nearly circular, weakly lobulate, loosely coiled containing approximately 2.5 whorls; chambers globular to subglobular; final whorl contains 7 or 8 chambers; sutures radial, distinct, depressed, slightly curved, wall calcareous, thin, finely perforate; surface finely hispid; aperture interiomarginal, equatorial, a low arch extending back along both umbilical margins to the septum; thin porticus borders entire aperture and partially covers shallow umbilici; umbilical portion of apertures of successive chambers remain open as relict apertures.

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 ehrenbergi compiled by the pforams@mikrotax project team viewed: 26-6-2024

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Short stable page link: https://mikrotax.org/pforams/index.php?id=131960 Go to Archive.is to create a permanent copy of this page - citation notes



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