Taxonomy:
Distinguishing features:
Parent taxon (Acanthoica): Body coccoliths with well-developed radial lath cycle, low mound in centre; coccospheres polymorphic, usually some coccoliths with well-developed spines
This taxon: Circular to broadly elliptical; rim broad; two concentric lath cycles; low central protrusion
Farinacci & Howe catalog pages: B. laffittei * , B. balcanicus * , S. beogradiensis *
Morphology:
LITHS: planolith, elliptical, CA: ca_disjunct, grill, process, CROSS-POLARS: R-prominent, |
Lith size: 3->5µm; Data source notes: lith size from ODs and illustrated specimens (BC width) |
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:
Aubry, M. -P. (1999). Handbook of Cenozoic calcareous nannoplankton. Book 5: Heliolithae (Zygoliths and Rhabdoliths). Micropaleontology Press, American Museum of Natural History, New York. 1-368. gs Galovic, I. & Young, J. R. (2012). Revised taxonomy of some Middle Miocene calcareous nannofossils in the Paratethys. Micropaleontology. 58(4): -. gs Jerkovic, L. (1971i). Blackites balcanicius nov. sp. des coccolithophorides du Tortonien de Belgrade. Bulletin Scientifique, Yougoslavie. A16(205-206): -. gs Jerkovic, L. (1971e). Syracosphaera beogradiensis nov. sp. des coccolithophorides du Sarmatien des environs de Pancevo (Yougoslavie). Bulletin Scientifique, Yougoslavie. A16: 207-207. gs References:
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Acanthoica laffittei compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-2-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=11 Go to Archive.is to create a permanent copy of this page - citation notes |
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Comments (3)
Hi Jeremy,
I've just found Acanthoica laffitei from Slovakia in Burdigalian (NN4). I hope the image was uploaded. Please let me know if you did not get it, so I could email it to you. Could you please put its FO or base within NN4 Zone. Thank you! :)
Jeremy