Nannoconus compressus


Classification: Mesozoic -> Braarudosphaerales -> Nannoconaceae -> Nannoconus -> N. compressus group -> Nannoconus compressus
Sister taxa: N. compressus, N. puer,

Distinguishing features: Rectangular to oval with narrow canal


Taxonomy:

Citation: Nannoconus compressus Bralower & Thierstein in Bralower et al., 1989
Rank: Species

Farinacci & Howe catalog pages: Nannoconus compressus *

Distinguishing features: Rectangular to oval with narrow canal


Morphology remarks: Small to medium sized (3-8µm) nannoconid with rectangular to oval outline and very narrow canal. Wall cycles are flat.

Geological Range:
Last occurrence (top): within Tithonian Stage (145.01-152.06Ma, top in Tithonian stage). Data source: Bralower et al., 1989
First occurrence (base): within Tithonian Stage (145.01-152.06Ma, base in Tithonian stage). Data source: Bralower et al., 1989

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: N. compressus group

    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

    Varol, O. & Bowman, A. R. (2019). Taxonomic revision of selected Late Jurassic (Tithonian) calcareous nannofossils and the application of mobile mounting. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen. 291: 65-87. gs


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

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10735 Go to Archive.is to create a permanent copy of this page - citation notes



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