Bomolithus aquilus

Classification: ntax_cenozoic -> Discoasterales -> Heliolithaceae -> Bomolithus -> Bomolithus aquilus
Sister taxa: B. aquilus, B. bramlettei, B. conicus, B. elegans, B. megastypus, B. supremus, B. sp.


Citation: Bomolithus aquilus Bown, 2010
Rank: Species
Taxonomic discussion: Distinguished from other Heliolithus and Bomolithus species by the absence of a birefringent cycle.

Distinguishing features: Medium-sized, circular heliolith with at least two discernible cycles in LM, both of which are dark in XPL. The cycles comprise around 40 visible radial elements and the central area is typically closed.

Farinacci & Howe catalog pages: B. aquilus *

Size: Diameter = 8.2-9.0 microns.

Search data:
TagsLITHS: nannolith-radiate, circular, star-shaped, CROSS-POLARS: V-prominent, R-prominent,
MetricsLith size: 7->10µm; Segments: 35->45;
Data source notes: size from OD & slightly extended
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP9b subzone (55.86-56.66Ma, top in Ypresian stage). Data source: Bown 2010
First occurrence (base): within NP9b subzone (55.86-56.66Ma, base in Thanetian stage). Data source: Bown 2010

Plot of occurrence data:


Bown, P. R. (2010). Calcareous nannofossils from the Paleocene/Eocene Thermal Maximum interval of southern Tanzania (TDP Site 14). Journal of Nannoplankton Research. 31(1): 11-38. gs V O


Bomolithus aquilus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 27-2-2021

Taxon Search:
Advanced Search

Short stable page link: Go to 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
Captcha Image
Powered by Commentics