Distinguishing features:
Parent taxon (Rarer genera): Less common genera
This taxon: Conical shaped holococcolith, usually seen in side view, base weak or absent
Daughter taxa (time control age-window is: 0-800Ma) | ||||
Nicholasia baileyi Conical shaped holococcolith, usually seen in side view, base weak or absent | ||||
Nicholasia sp. Specimens not identified to species level |
Taxonomy:
Farinacci & Howe catalog pages: Nicholasia *
Distinguishing features:
Parent taxon (Rarer genera): Less common genera
This taxon: Conical shaped holococcolith, usually seen in side view, base weak or absent
Morphology:
LITHS: holococcolith, circular, triangular, hollow, |
Lith size: 2->3µm; Data source notes: size range of included species |
Geological Range:
Last occurrence (top): at top of Campanian Stage (100% up, 72.2Ma, in Campanian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Turonian Stage (89.39-93.90Ma, base in Turonian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
Nicholasia compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-9-2024
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10802 Go to Archive.is to create a permanent copy of this page - citation notes |
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