Orthorhabdus finifer


Classification: Coccolithophores -> Nannolith families inc sed -> Ceratolithaceae -> Orthorhabdus -> Orthorhabdus finifer
Sister taxa: O. serratus, O. rugosus, O. striatus, O. rioi, O. finifer, O. extensus, O. sp.,

Distinguishing features: Horseshoe-shaped species of Orthorhabdus with short median blade and elongate curved lateral blades.


Taxonomy:

Citation: Orthorhabdus finifer ( Theodoridis, 1984) Young & Bown 2014
Rank: Species
Basionym: Triquetrorhabdulus finifer Theodoridis, 1984
Notes & discussion: Arguably a transitional form to Amaurolithus

Farinacci & Howe catalog pages: Triquetrorhabdulus finifer *

Distinguishing features: Horseshoe-shaped species of Orthorhabdus with short median blade and elongate curved lateral blades.

Search data:
TagsLITHS: nannolith-other, horseshoe-shaped,
CSPH: not known, V-UNITS: all, R-UNITS: none, DETAILS: 1ou,
MetricsLith size: 10->16┬Ám; Segments: 3->3;
Sources: lith length from illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NN12 zone (5.12-5.59Ma, top in Zanclean stage). Data source: Young 1998
First occurrence (base): within NN11d subzone (5.59-5.94Ma, base in Messinian stage). Data source: Young 1998

Plot of occurrence data:

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

    References:

    Theodoridis, S. (1984). Calcareous nannofossil biostratigraphy of the Miocene and revision of the helicoliths and discoasters. Utrecht Micropaleontological Bulletin, 32: 1-271. GS

    Young, J.R. & Bown, P.R. (2014). Some emendments to calcareous nannoplankton taxonomy. Journal of Nannoplankton Research, 33(1): 39-46. GS

    Young, J.R., (1998). Neogene. In: Bown, P.R. (Editor), Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publications Series. Chapman & Hall, London, pp. 225-265. GS


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    Orthorhabdus finifer compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-5-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=970 Go to Archive.is to create a permanent copy of this page - citation notes



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