arrayname: original 
Nannotax3 - ntax_cenozoic - Blackites spiculiformis Nannotax3 - ntax_cenozoic - Blackites spiculiformis

Blackites spiculiformis


Classification: ntax_cenozoic -> Syracosphaerales -> Rhabdosphaeraceae -> Blackites -> B. clavus group -> Blackites spiculiformis
Sister taxa: B. bipartitus, B. clavus, B. dupuisii, B. gamai, B. spiculiformis, B. thiedei

Taxonomy:

Citation: Blackites spiculiformis Bown & Dunkley Jones, 2006
Taxonomic rank: species
Taxonomic discussion: Similar to Blackites creber but with a shorter, broader spine.

Distinguishing features:
Parent taxon (B. clavus group): Spine conical, tapering with maximum width near base
This taxon: Rhabdolith coccolith with a Blackites gladius-like rim and a relatively short, narrow, tapering, hollow spine that may incorporate a basal collar.

Farinacci & Howe catalog pages: B. spiculiformis *

Search data:
LITHS: planolith, circular, elliptical, CA: ca_disjunct, grill, process,
Lith size: 5->8µm;
Data source notes: lith size (spine height) 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 NP15 zone (42.87-46.29Ma, top in Lutetian stage). Data source: Bown & Dunkley Jones, 2006
First occurrence (base): within NP15 zone (42.87-46.29Ma, base in Lutetian stage). Data source: Bown & Dunkley Jones, 2006

Plot of occurrence data:

References:

Bown, P. R. & Dunkley Jones, T. (2006). New Paleogene calcareous nannofossil taxa from coastal Tanzania: Tanzania Drilling Project Sites 11 to 14. Journal of Nannoplankton Research. 28(1): 17-34. gs

Bybell, L. (1975). Middle Eocene calcareous nannofossils at Little Stave Creek, Alabama. Tulane Studies in Geology and Paleontology. 11(4): 177-247. gs O

Jones, A. P. & Dunkley Jones, T. (2020). Middle Eocene to Early Oligocene calcareous nannofossils from the Nanggulan Formation, Java, Indonesia. Journal of Nannoplankton Research. 38(1): 57-79. gs


nannotaxlogo400px

Blackites spiculiformis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 25-3-2025

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=125 Go to Archive.is to create a permanent copy of this page - citation notes
nannotaxlogo400px

Nannotax is being sponsored through 2024 by Woodside Energy and Shell USA


Add Comment

* Required information
Captcha Image

Comments

No comments yet. Be the first!