Journal article

Revision of the planktonic foraminifera Pseudothalmanninella klausi (LEHMANN, 1966) and Globotruncanella semsalensis (CORMINBOEUF, 1961) and first scanning electron microscope (SEM) images of the holotypes

  • Spezzaferri, Silvia Département de Géosciences, Géologie et Paléontologie, Université de Fribourg, Suisse
  • Caron, Michèle Département de Géosciences, Géologie et Paléontologie, Université de Fribourg, Suisse
    2008
Published in:
  • Revue de Paléobiologie. - 2008, vol. 27, no. 1, p. 81-88
English The planktonic foraminifera Rotalipora klausi Lehmann, 1966 and Globotruncana? semsalensis Corminboeuf, 1961, were figuredonly by drawings and the specimens were never made publicly available, although deposited in the collections of the Departmentof Geosciences, Fribourg, Switzerland. We present here for the first time their Scanning Electron Microscope documentation andcomparison with the original drawings. We complete the morphological descriptions and, accordingly, we emend the generic attributionof both species.Since its first description Rotalipora klausi has acquired a great importance as phylogenetic and biostratigraphic marker for the LateAlbian. Its generic attribution is made according to the recent revision of the polyphyletic group of Rotaliporids as Pseudothalmanninellaklausi.Globotruncana? semsalensis was first described in a rich planktonic foraminiferal assemblage of Upper Campanian. This species wasdisregarded for long time because of some disturbing resemblances with the Praeglobotruncana lineage. The present study proves thevalidity of this species and attributes it to the genus Globotruncanella.
Faculty
Faculté des sciences et de médecine
Department
Département de Géosciences
Language
  • English
Classification
Geology
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Identifiers
  • RERO DOC 11218
Persistent URL
https://folia.unifr.ch/unifr/documents/300869
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