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Neogene occurrences of the marine acritarch genus Nannobarbophora Habib and Knapp, 1982 emend., and the new species N. Gedlii

Published online by Cambridge University Press:  20 May 2016

Martin J. Head
Martin J. Head*
Affiliation:
Godwin Institute for Quaternary Research, Department of Geography, University of Cambridge, Downing Place, Cambridge CB2 3EN, United Kingdom,
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Extract

The stratigraphic utility of small marine acritarchs in the Neogene has been known for more than a decade (e.g., de Vernal and Mudie, 1989). Their potential for biostratigraphy in the Cretaceous is also well known, and was elegantly elucidated by Habib and Knapp (1982) in a detailed scanning electron microscope (SEM) study from the western North Atlantic. Habib and Knapp erected 12 new acritarch genera including the acanthomorph genus Nannobarbophora and its three species N. barbata (the name of the type), N. pistilla, and N. platforma. A diagnostic feature of Nannobarbophora is the presence of spinules concentrated on, or restricted to, the surface of distally closed processes. Excystment is by a simple linear split (Habib and Knapp, 1982, p. 347).

Type
Paleontological Notes
Information
Journal of Paleontology , Volume 77 , Issue 2 , March 2003 , pp. 382 - 385
Copyright
Copyright © The Paleontological Society

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