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Volume 23, issue 2 | Copyright
J. Micropalaeontol., 23, 181-190, 2004
https://doi.org/10.1144/jm.23.2.181
© Author(s) 2004. This work is distributed under
the Creative Commons Attribution 4.0 License.

  01 Nov 2004

01 Nov 2004

New calcareous dinoflagellates (Calciodinelloideae) from the Middle Coniacian to Upper Santonian chalks of Lägerdorf (northern Germany)

Tania Hildebrand-Habel1 and Helmut Willems2 Tania Hildebrand-Habel and Helmut Willems
  • 1Department of Geosciences, University of Oslo, P.O. Box 1047 Blindern, N-0316 Oslo, Norway
  • 2Department of Geosciences, University of Bremen, P.O. Box 330440, D-28334 Bremen, Germany

Abstract. Three new calcareous dinoflagellate species from the Middle Coniacian to Upper Santonian chalks of Lägerdorf (northern Germany) are formally described: Calcicarpinum macrogranulum n. sp., Pirumella fragilis n. sp. and Ruegenia quinqueangulata n. sp. The species show differing vertical distribution patterns which might result from local sea-level changes: P. fragilis and R. quinqueangulata are restricted to the possibly transgressive upper Mid-Coniacian to Lower Santonian interval and C. macrogranulum occurs consistently only in the probably regressive lower Mid-Coniacian and Middle to Upper Santonian intervals.

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