Nannotax3 - ntax_mesozoic - Nicholasia baileyi Nannotax3 - ntax_mesozoic - Nicholasia baileyi

Nicholasia baileyi


Classification: ntax_mesozoic -> Holococcoliths -> Rarer genera -> Nicholasia -> Nicholasia baileyi
Sister taxa: N. baileyi, N. sp.

Distinguishing features:
Parent taxon (Nicholasia): Conical shaped holococcolith, usually seen in side view, base weak or absent
This taxon: Conical shaped holococcolith, usually seen in side view, base weak or absent


Taxonomy:

Citation: Nicholasia baileyi Lees, 2007
taxonomic rank: Species

Farinacci & Howe catalog pages: N. baileyi *

Distinguishing features:
Parent taxon (Nicholasia): Conical shaped holococcolith, usually seen in side view, base weak or absent
This taxon: Conical shaped holococcolith, usually seen in side view, base weak or absent


Morphology:

"Diagnosis: As for the genus. This species is very small. The ‘spine’ appears to terminate bluntly and is generally dark." [Lees 2007]

Size:
Holotype dimensions: H = 2.20μm, W = 1.76μm.

Search data:
LITHS: holococcolith, circular, triangular, hollow,
Lith size: 2->3µm;
Data source notes: original description & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Campanian Stage (72.17-83.65Ma, top in Campanian stage). Data source: Lees 2007 (original description)
First occurrence (base): within Turonian Stage (89.39-93.90Ma, base in Turonian stage). Data source: Lees 2007 (original description)

Plot of occurrence data:

References:

Lees, J. A. (2007). New and rarely reported calcareous nannofossils from the Late Cretaceous of coastal Tanzania: outcrop samples and Tanzania Drilling Project Sites 5, 9 and 15. Journal of Nannoplankton Research. 29(1): 39-65. gs O


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Nicholasia baileyi compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 14-6-2024

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10803 Go to Archive.is to create a permanent copy of this page - citation notes
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