Conusphaera rothii subsp. rothii


Classification: Mesozoic -> Nannoliths inc sedis -> Eoconusphaeraceae -> Conusphaera -> Conusphaera rothii -> Conusphaera rothii subsp. rothii
Sister taxa: C. rothii subsp. minor, C. rothii subsp. rothii,

Distinguishing features: Large form of C. rothii - >4 µm


Taxonomy:

Citation: Conusphaera rothii subsp. rothii (Thierstein 1971) Jakubowski 1986
Rank: sub-species
Notes & discussion: Separation of large and small forms of C. rothii was introduced by Varol & Bowman 2019

Farinacci & Howe catalog pages:

Distinguishing features: Large form of C. rothii - >4 µm

Geological Range:
Last occurrence (top): within Early Aptian Substage (122.98-126.30Ma, top in Aptian stage). Data source: Varol & Bowman 2019
First occurrence (base): within Early Tithonian Substage (147.72-152.06Ma, base in Tithonian stage). Data source: Varol & Bowman 2019

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Conusphaera rothii

    References:

    Jakubowski, M. (1986). New calcareous nannofossil taxa from the Lower Cretaceous of the North Sea. INA Newsletter. 8: 38-42. gs

    Thierstein, H. R. (1971). Tentative Lower Cretaceous Calcareous Nannoplankton Zonation. Eclogae Geologicae Helvetiae. 64: 459-488. 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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    Conusphaera rothii subsp. rothii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-10-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11364 Go to Archive.is to create a permanent copy of this page - citation notes



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