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The Extant Thermophilic Dinoflagellate Tectatodinium pellitum (al. Tectatodinium rugulatum) from the Danian of Denmark

Martin J. Head and Henrik Nøhr-Hansen
Journal of Paleontology
Vol. 73, No. 4 (Jul., 1999), pp. 577-579
Published by: Paleontological Society
Stable URL: http://www.jstor.org/stable/1306757
Page Count: 3
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Extant Thermophilic Dinoflagellate Tectatodinium pellitum (al. Tectatodinium rugulatum) from the Danian of Denmark
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Abstract

Tectatodinium rugulatum (Hansen, 1977) McMinn, 1988, from the lower Danian of Denmark, is considered conspecific with, and a junior synonym of, the extant thermophilic species Tectatodinium pellitum Wall, 1967. However, the Danian material, based on holotype and topotype specimens, appears to show a degree of morphologic variability not seen in younger material. The accepted stratigraphic range base of Tectatodinium pellitum is now extended to the lower Danian, where this species appears to be a useful biostratigraphic marker in the Danish North Sea basin.

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