Acanthoica laffittei


Classification: Coccolithophores -> Syracosphaerales -> Rhabdosphaeraceae -> Acanthoica -> Acanthoica laffittei
Sister taxa: A. quattrospina, A. acanthifera, A. acanthos, A. biscayensis, A. janchenii, A. maxima, A. sp A, A. backmanii, A. cohenii, A. laffittei, A. sp.,

Distinguishing features: Circular to broadly elliptical; rim broad; two concentric lath cycles; low central protrusion


Taxonomy:

Citation: Acanthoica laffittei (Jerkovic 1971) Aubry 1999
Rank: Species
Basionym: Blackites laffittei Jerkovic 1971
Synonyms: Blackites balcanicus Jerkovic 1971
Acanthoica balcanicus (Jerkovic 1971) Aubry 1999 [possible synonym cf. Galovic & Young (2012) - type specimen is poorly figured and could be something else]
Syracosphaera beogradiensis Jerkovic 1971
Acanthoica beogradiensis (Jerkovic 1971) Aubry 1999 [possible synonym cf. Galovic & Young (2012) - type specimen is poorly figured and could be something else]

Farinacci & Howe catalog pages: Blackites balcanicus * Blackites laffittei * Syracosphaera beogradiensis *

Distinguishing features: Circular to broadly elliptical; rim broad; two concentric lath cycles; low central protrusion


Morphology remarks: The concentric lath cycles are best seen on the proximal surface, on the distal surface they are often obscured by irregular laths extending down from the central protrusion. Coccolith she varies from circular to distinctly elliptical, even on single collapsed coccospheres.

Search data:
TagsLITHS: planolith, elliptical, CA: grill, PROCESS: conical, length-slow, low, spine,
CSPH: not known, R-UNITS: c-str, spine, DETAILS: ca_disjunct,
MetricsLith size: 3->5┬Ám;
Sources: lith size from ODs and illustrated specimens (BC width)
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Described from the Paratethys and possibly endemic to that region
Last occurrence (top): within NN6 zone (11.90-13.53Ma, top in Serravallian stage). Data source: Galovic & Young 2012
First occurrence (base): within NN6 zone (11.90-13.53Ma, base in Serravallian stage). Data source: Galovic & Young 2012

Plot of occurrence data:

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

    References:

    Aubry, M.-P., (1999). Handbook of Cenozoic calcareous nannoplankton. Book 5: Heliolithae (Zygoliths and Rhabdoliths). Micropaleontology Press, American Museum of Natural History, New York, 368 pp.

    Galovic, I. & Young, J.R., (2012). Revised taxonomy of some Middle Miocene calcareous nannofossils in the Paratethys. Micropaleontology, 58(4).

    Jerkovic, L., (1971). Blackites balcanicius nov. sp. des coccolithophorides du Tortonien de Belgrade. Bull. Sci. Yougoslavie, A16(205-206).

    Jerkovic, L., (1971). Syracosphaera beogradiensis nov. sp. des coccolithophorides du Sarmatien des environs de Pancevo (Yougoslavie). Bull. Sci. Yougoslavie, A16: 206-207.


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    Acanthoica laffittei compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-12-2018

    Taxon Search:
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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11Go to Archive.is to create a permanent copy of this page - citation notes



    Comments (1)

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    Ines Galovic (CGS, Croatia)
    the missing part of the last reference is: ...des invirons de Pan_evo (Yougoslavie). Bull. Sci. Yougoslavie, A16(207)
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    Jeremy Young (UCL, UK)
    thanks! I have corrected that now
    Jeremy
    Page 1 of 1
     

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