Distinguishing features:
Parent taxon (Rarer genera): Less common genera
This taxon: Holococcolith formed of 8 blocks, typically 4 large and 4 small.
Daughter taxa (time control age-window is: 0-800Ma) | ||||
Octolithus multiplus Holococcolith formed of about 8 blocks of varying size with no separate central structure. | ||||
Octolithus sp. Specimens not identified to species level |
Taxonomy:
Farinacci & Howe catalog pages: Octolithus *
Distinguishing features:
Parent taxon (Rarer genera): Less common genera
This taxon: Holococcolith formed of 8 blocks, typically 4 large and 4 small.
Search data:
LITHS: holococcolith, elliptical, CROSS-POLARS: rim-unicyclic, |
Lith size: 4->8µm; Data source notes: size range of included species |
Geological Range:
Last occurrence (top): at top of NP4 zone (100% up, 61.5Ma, in Selandian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Campanian Stage (72.17-83.65Ma, base in Campanian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 132-199. gs O Romein, A. J. T. (1979). Lineages in Early Paleogene calcareous nannoplankton. Utrecht Micropaleontological Bulletin. 22: 1-231. gs OReferences:
Octolithus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 9-9-2024
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10812 Go to Archive.is to create a permanent copy of this page - citation notes |
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