Nannotax3 - ntax_mesozoic - Bifidalithus geminicatillus

Nannotax3 - ntax_mesozoic - Bifidalithus geminicatillus <title>Nannotax3 - ntax_mesozoic - Bifidalithus geminicatillus

Bifidalithus geminicatillus

Classification: ntax_mesozoic -> Holococcoliths -> Rarer genera -> Bifidalithus -> Bifidalithus geminicatillus
Sister taxa: B. geminicatillus, B. mchanae, B. sp.

Distinguishing features:
Parent taxon (Bifidalithus): Holococcoliths formed from two blocks divided by a transverse suture.
This taxon: Narrow rim around edge of blocks, no pore

Lees & Schueth 2020 pl1 f09.JPG
Burnett1998-6-11-22.jpg
Varol1991 f8 06.JPG
Varol1991 f8 07.JPG
Varol1991 f8 08.JPG

Taxonomy:

Citation: Bifidalithus geminicatillus Varol, 1991

Rank: Species

Farinacci & Howe catalog pages: B. geminicatillus *

Distinguishing features:
Parent taxon (Bifidalithus): Holococcoliths formed from two blocks divided by a transverse suture.
This taxon: Narrow rim around edge of blocks, no pore

Morphology:

Size:

Ecology & Biogeography

Biology & life-cycles

Phylogenetic relations

Search data:

LITHS: holococcolith, elliptical, quadrate, CA: ca_disjunct, CROSS-POLARS: rim-unicyclic, V-prominent,

Lith size: 5->7µm; Segments: 2->2;
Data source notes: holotype +/-1µm

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 (72.05-83.64Ma, top in Campanian stage). Data source: Burnett 1998
First occurrence (base): within Campanian Stage (72.05-83.64Ma, base in Campanian stage). Data source: Burnett 1998

Plot of occurrence data:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
(NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Bifidalithus

References:

Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 132-199. gs O

Lees, J. A. & Schueth, J. (2020). Taxonomic note – New Upper Cretaceous nannofossil taxa from the Turonian of New Mexico, USA. Journal of Nannoplankton Research. 38(1): 81-82. gs V O

Varol, O. (1991). New Cretaceous and Tertiary Calcareous Nannofossils. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 182: 211-237. gs

Bifidalithus geminicatillus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 27-1-2023

Taxon Search:

Advanced Search

AphiaID: not found
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10059 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

Notify me of new comments via email.

Remember my form inputs on this computer.