Bekelithella


Classification: Coccolithophores -> Isochrysidales -> Noelaerhabdaceae -> Bekelithella
Sister taxa: Emiliania, Gephyrocapsa, Pseudoemiliania, Reticulofenestra, Noelaerhabdus, Bekelithella, Pyrocyclus,

Daughter taxa: (blue => in age window 0-800Ma)
Like Reticulofenestra but with circlet of small spines formed from inner tube.
Specimens which cannot be assigned to established species

Taxonomy:

Citation: Bekelithella (Bona and Gal, 1985)
Rank: Genus
Basionym: Bekelithella Bona and Gal, 1985
Type species: Bekelithella echinata Bóna & Gál 1985

Distinguishing features: With ring of short spines extending from inner tube

Farinacci & Howe catalog pages: Bekelithella *


Morphology remarks: Like Reticulofenestra but with circlet of small spines formed from inner tube

Ecology & Biogeography: : Endemic to the central Paratethys.

Most likely ancestor: Reticulofenestra - at confidence level 0 (out of 5). Data source: e.g. Perch-Nielsen 1985.

Search data:
TagsLITHS: placolith, elliptical, RIM: collar, spine(s), CA: grill, vacant,
CSPH: spherical, monomorphic, V-UNITS: none, R-UNITS: all, c-str, distal shield, prox shield, tube, DETAILS: ca_conjunct, isogyres kinked, isogyres oblique, rim-unicyclic,
MetricsLith size: 3->6µm;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Pannonian, equivalent of NN10 or 11
Last occurrence (top): in upper part of Tortonian Stage (76% up, 8.3Ma, in Pannonian stage). Data source: Total of range of species in this database
First occurrence (base): in mid part of Tortonian Stage (48% up, 9.5Ma, in Sarmatian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Bona, J. & Gal, M. (1985). Kalkiges Nannoplankton im Pannonien Ungarns (Calcareous nannoplankton in Pannonian Hungary). In, Papp, A. (ed.) Chronostratigraphie und Neostrat., Miozän der Zentral Paratethys, Bd VII, M6 Pannonien (Slovenien und Serbien). Akademiai Klado, VOL: 482-515. gs

Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 225-265. gs


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Bekelithella compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 21-8-2019

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=67 Go to Archive.is to create a permanent copy of this page - citation notes



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