Varolia gracilimura


Classification: ntax_cenozoic -> Holococcoliths -> fossil holococcoliths -> Varolia -> Varolia gracilimura
Sister taxa: V. boomeri, V. cistula, V. gracilimura, V. macleodii, V. sicca, V. sp.

Taxonomy:

Citation: Varolia gracilimura Bown, 2005
Rank: Species

Distinguishing features: Medium-sized, thin-walled, dome-like holococcolith. The thin, birefringent walls form a proximal plate and a domed upper surface. The dome broadens distally from the basal plate, and is of similar height and width or taller.

Farinacci & Howe catalog pages: V. gracilimura *

Search data:
TagsLITHS: holococcolith, elliptical, hollow, CA: closed, CROSS-POLARS: V-prominent, R-prominent,
MetricsLith size: 3.5->5.5µm;
Data source notes: lith size (larger of height & width) from OD
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP17 zone (37.32-40.40Ma, top in Priabonian stage). Data source: Bown 2005
First occurrence (base): within NP15b subzone (44.12-45.49Ma, base in Lutetian stage). Data source: Bown 2005

Plot of occurrence data:

References:

Bown, P. R. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs V O


nannotaxlogo400px

Varolia gracilimura compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-2-2021

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1479 Go to Archive.is to create a permanent copy of this page - citation notes



Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics