Campylosphaera differta


Classification: Coccolithophores -> Coccolithales -> Coccolithaceae -> Campylosphaera -> Campylosphaera differta
Sister taxa: C. dela, C. differta, C. eodela, C. eroskayi, C. sp.,

Taxonomy:

Citation: Campylosphaera differta Bown, 2010
Rank: Species
Notes & discussion: Distinguished from other Campylosphaera species by the broad cross bars that fill the central area, and the bright inner cycle is reduced.

Distinguishing features: Medium to large, elliptical to oblong Campylosphaera with a relatively narrow central area filled with broad cross-bars.

Farinacci & Howe catalog pages: Campylosphaera differta *

Search data:
TagsLITHS: placolith, elliptical, oblong, RIM: psh-bicyclic, CA: Placoliths: closed-----, cross, cross-axial, closed,
CSPH: spherical, equant, monomorphic, V-UNITS: distal shield, px-tube, V-prominent, R-UNITS: c-str, ds-tube, prox shield, R-prominent, DETAILS: ca_disjunct, rim-bicyclic, isogyres oblique,
MetricsLith size: 5->10µm;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP11 zone (53.70-54.17Ma, top in Ypresian stage). Data source: Self-Trail 2011 (imaged specimen from NP11)
First occurrence (base): within NP9 zone (55.86-57.21Ma, base in Thanetian stage). Data source: Bown, 2010

Plot of occurrence data:

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

    References:

    Bown, P. R. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs

    Bown, P. R. (2010). Calcareous nannofossils from the Paleocene/Eocene Thermal Maximum interval of southern Tanzania (TDP Site 14). Journal of Nannoplankton Research. 31: 11-38. gs

    Self-Trail, J. (2011). Paleogene Calcareous Nannofossils of the South Dover Bridge core, Southern Maryland (USA). Journal of Nannoplankton Research. 32(1): 1-28. gs

    Shamrock, J. L. & Watkins, D. K. (2012). Eocene calcareous nannofossil biostratigraphy and community structure from Exmouth Plateau, Eastern Indian Ocean (ODP Site 762). Stratigraphy. 9(1): 1-11. gs

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    Campylosphaera differta compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 26-2-2020

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    Comments (1)

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    Jean Self-Trail (US)
    You list the geologic range of Camplyospheara differta as being from NP9 to NP10. However, one of the images (mine) is from NP11. Therefore, you need to adjust the geologic range of this species.

    Thanks!
    Gravatar
    Jeremy Young (UCL, UK)
    Thanks for pointing that out - curiously though in the paper the only record is from NP10, but I guess it is a very rare species and you found it during imaging but not during the taxon count?
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