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Species Planomalina praebuxtorfi Wonders 1975


Diagnosis / Definition:
Gasinski (1988):
Dimensions: D = 0.40-0.75 mm, t = 0.15-0.40 mm
Discussion / Comments:
Gasinski (1988):
Remarks: The specimens are similar to those illustrated by Wonders (1975) from El Burrueco (Spain) and by Sigal (1979) from Leg 47 B, DSDP Site 398. Intermediate forms between ancestral G. bentonensis and P. buxtorji have been encountered. Many authors have followed Wonders (1975, 1980) and separated these intermediate forms as P. praebuxtorfi (Robaszynski & Caron, 1979; Leckie, 1984; Caron, 1985). It is used here as an index form and zonal marker (Figure 7). Local stratigraphic range: First Appearance Datum (FAD) and Last pearance Datum (LAD) within R. ticinensis- P. praebuxtorfi Zone below).
Systematics:

22
 Superfamilia Globigerinaceae
  Familia Planomalinidae
   Genus Planomalina
    Species Planomalina praebuxtorfi
Synonym list:
Gasinski (1988):
1975 Planomalina praebuxtorfi Wonders. - Wonders : p.90 pl. 1; fig. 1a-c
1988 Planomalina praebuxtorfi Wonders. - Gasinski : p.234 fig. 13e-h
Was used in synonym list of:
Planomalina pulchella Todd & Low 1964
Alanlordella praebuxtorfi Wonders 1975
References:

Wonders,A.A.H. (1975):
Cretaceous planktonic foraminifera of the Planomalina buxtorfi group from El Burrueco, southern Spain . Koninklijke Nederlandse Akademie van Wetenschappen, Amsterdam, Proceedings, Series B Vol. 78 p. 83-93

Gasinski,M.A.. (1988):
Foraminiferal biostratigraphy of the Albian and Cenomanian sediments in the Polish part of the Pieniny Klippen Belt, Carpathian Mountains. . Cretaceous Research Vol. 9 p. 217-247
Anonymous: Unedited TaxonConcept data
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