Nannoconus bermudezii


Classification: Mesozoic -> Braarudosphaerales -> Nannoconaceae -> Nannoconus -> N. steinmannii group -> Nannoconus bermudezii
Sister taxa: N. bermudezii, N. dolomiticus, N. farinacciae, N. regularis, N. steinmannii,

Distinguishing features: Very large, tapering (20-28 microns) (height ~3x width or more).


Taxonomy:

Citation: Nannoconus bermudezii Brönnimann, 1955
Rank: Species

Farinacci & Howe catalog pages: Nannoconus bermudezi *

Distinguishing features: Very large, tapering (20-28 microns) (height ~3x width or more).

Search data:
TagsLITHS: nannolith-radiate, circular, cylindrical, hollow, CA: vacant, T-UNITS: T-prominent,
MetricsLith size: 20->30µm;
Sources: original description
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Barremian Stage (126.30-130.77Ma, top in Barremian stage). Data source: Perch-Nielsen 1985a
First occurrence (base): within Valanginian Stage (133.88-139.39Ma, base in Valanginian stage). Data source: Perch-Nielsen 1985a

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Nannoconus bermudezii, synonyms included - Nannoconus bermudezi; Nannoconus bermudezii;
  • space-time plot :: Samples map :: Parent: N. steinmannii group

    References:

    Applegate, J. L. & Bergen, J. A. (1988). Cretaceous calcareous nannofossil biostratigraphy of sediments recovered from the Galicia Margin, ODP Leg 103. Proceedings of the Ocean Drilling Program. Scientific Results. 103: 293-348. gs

    Brönnimann, P. (1955). Microfossils incertae sedis from the Upper Jurassic and Lower Cretaceous of Cuba. Micropaleontology. 1(28-51): -. gs

    Covington, J. M. & Wise, S. W. (1987). Calcareous nannofossil biostratigraphy of a Lower Cretaceous deep-sea fan complex: Deep Sea Drilling Project Leg 93 Site 603, lower continental rise off Cape Hatteras. Initial Reports of the Deep Sea Drilling Project. 93: 617-660. gs


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    Nannoconus bermudezii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-2-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10723 Go to Archive.is to create a permanent copy of this page - citation notes



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