Nannotax3 - ntax_mesozoic - Faviconus multicolumnatus

Faviconus multicolumnatus


Classification: ntax_mesozoic -> Braarudosphaerales -> Nannoconaceae -> Faviconus -> Faviconus multicolumnatus
Sister taxa: F. multicolumnatus, F. sp.

Distinguishing features:
Parent taxon (Faviconus): Long, narrow columnar nannoliths formed from stacks of calcite laths around a narrow axial canal. May occur as linked groups of multiple columns.
This taxon: Tall, narrow columnar nannoliths formed from stacks of calcite laths around a narrow axial canal. May occur as linked groups of multiple columns.


Taxonomy:

Citation: Faviconus multicolumnatus Bralower in Bralower et al., 1989
Rank: Species

Farinacci & Howe catalog pages: F. multicolumnatus *

Distinguishing features:
Parent taxon (Faviconus): Long, narrow columnar nannoliths formed from stacks of calcite laths around a narrow axial canal. May occur as linked groups of multiple columns.
This taxon: Tall, narrow columnar nannoliths formed from stacks of calcite laths around a narrow axial canal. May occur as linked groups of multiple columns.


Morphology: Similar to nannoconids but the constituent stacked cycles do not appear to spiral.

Search data:
TagsLITHS: nannolith-other, cylindrical,
MetricsLith size: 6->12µm;
Data source notes: original description
The morphological data given here can be used on the advanced search page. See also these notes

See also: Pseudoconus enigma ;

Geological Range:
Last occurrence (top): within Early Berriasian Substage (143.57-145.01Ma, top in Berriasian stage). Data source: Bown & Cooper 1998
First occurrence (base): near base of NJ15b subzone (10% up, 157.9Ma, in Oxfordian stage). Data source: Bown & Cooper 1998 (fig. 4) - secondary events

Plot of occurrence data:

References:

Bown, P. R. & Cooper, M. K. E. (1998). Jurassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 34-85. gs

Bralower, T. J., Monechi, S. & Thierstein, H. R. (1989). Calcareous nannofossil zonation of the Jurassic-Cretaceous boundary interval and correlation with the geomagnetic polarity timescale. Marine Micropaleontology. 14: 153-235. gs

Casellato, C. E. (2010). Calcareous nannofossil biostratigraphy of Upper Callovian - Lower Berriasian successions from the Souhern Alps, North Italy. Rivista Italiana di Paleontologia e Stratigrafia. 116(3): 357-404. gs V O


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Faviconus multicolumnatus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-11-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10449 Go to Archive.is to create a permanent copy of this page - citation notes



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