Distinguishing features: Holococcoliths with rim of 10-26 blocks and central perforation.
Daughter taxa: (blue => in age window 0-800Ma) | ||||
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Specimens not identified to species level |
Taxonomy:
Farinacci & Howe catalog pages: Russellia *
Distinguishing features: Holococcoliths with rim of 10-26 blocks and central perforation.
Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Total of range of species in this database
First occurrence (base): within Maastrichtian Stage (66.04-72.05Ma, base in Maastrichtian stage). Data source: Total of range of species in this database
Plot of occurrence data:
Risatti, J.B., (1973). Nannoplankton biostratigraphy of the Upper Bluffport Marl-Lower Prairie Bluff Chalk interval (upper Cretaceous) in Mississippi. In: Smith, L.A. and Hardenbol, J. (Editors), Proceedings of the Symposium on Calcareous Nannofossils. Gulf Coast Section SEPM Publication, pp. 8-57.
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Russellia compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 15-2-2019
Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11061 Go to Archive.is to create a permanent copy of this page - citation notes |