Bramletteius


Classification: Coccolithophores -> Coccolithales -> Coccolithaceae -> Bramletteius
Sister taxa: Coccolithus, Bramletteius, Campylosphaera, Chiasmolithus, Coronocyclus, Cruciplacolithus, Ericsonia, Solidopons, Birkelundia, Clausicoccus, Craticullithus, Hughesius, Kilwalithus,

Daughter taxa: (blue => in age window 0-800Ma)

Like B. serraculoides but spine narrower, and stratigraphically older


Small Cruciplacolithus-like coccoliths with tall, thin, paddle-like processes.
Specimens which cannot be assigned to any established species

Taxonomy:

Citation: Bramletteius Gartner, 1969
Rank: Genus
Type species: Bramletteius serraculoides Gartner, 1969
Notes & discussion: Bramletteius variabilis Roth, 1970 was described based on differently shaped spines (e.g. ), but only Bramletteius serraculoides is routinely reported.
A Pliocene species Bramletteius? duoalatus Martin 1981 is probably an unusual Gepyrocapsa

Distinguishing features: Like Cruciplacolithus but coccoliths small and with large, thin, paddle-like processes.

Farinacci & Howe catalog pages: Bramletteius *

Search data:
TagsLITHS: placolith, elliptical, CA: cross, cross-axial, PROCESS: length-oblique, monocrystalline, spine, x-section-flat,
CSPH: not known, V-UNITS: distal shield, px-tube, R-UNITS: c-str, ds-tube, prox shield, DETAILS: ca_disjunct, rim-bicyclic, isogyres oblique,
MetricsLith size: 1.5->5µm;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): in lower part of Rupelian Stage (32% up, 32Ma, in Rupelian stage). Data source: Total of range of species in this database
First occurrence (base): in upper part of Danian Stage (63% up, 63.2Ma, in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Gartner, S. (1969c). Two new calcareous nannofossils from the Gulf Coast Eocene. Micropaleontology. 15: 31-34. gs

Perch-Nielsen, K. (1985a). Cenozoic calcareous nannofossils. In, Bolli, H. M. , Saunders, J. B. & Perch-Nielsen, K. (eds) Plankton Stratigraphy. Cambridge University Press, Cambridge 427-555. gs


nannotaxlogo400px

Bramletteius compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-10-2019

Taxon Search:
Advanced Search

Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=157 Go to Archive.is to create a permanent copy of this page - citation notes



Comments (0)

No comments yet. Be the first!

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics