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Nannotax3 - ntax_cenozoic - Triquetrorhabdulus nanhaiensis Nannotax3 - ntax_cenozoic - Triquetrorhabdulus nanhaiensis

Triquetrorhabdulus nanhaiensis


Classification: ntax_cenozoic -> Nannolith families inc sed -> Ceratolithaceae -> Triquetrorhabdulus -> Triquetrorhabdulus nanhaiensis
Sister taxa: T. carinatus, T. challengeri, T. milowii, T. nanhaiensis, T. sp.

Taxonomy:

Citation: Triquetrorhabdulus nanhaiensis Jiang & Wang 2023
Taxonomic rank: species

Distinguishing features:
Parent taxon (Triquetrorhabdulus): Elongate, tri-radiate nannoliths formed of a single calcite crystal with the c-axis parallel to the length of the nannolith. Nannolith straight with bilateral or trilateral symmetry. Shows high birefringence.
This taxon: Like T. milowii but with two long spines, one at obtuse angle to main body

Farinacci & Howe catalog pages: T. nanhaiensis *

Search data:
Lith size: 0->0µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Only currently known from short interval in two sites (IODP 1504 & 1501) from the South China Sea 
Last occurrence (top): at top of NN4 zone (100% up, 14.9Ma, in Langhian stage). Data source: Jiang & Wang 2023
First occurrence (base): near top of NN4 zone (90% up, 15.2Ma, in Langhian stage). Data source: Jiang & Wang 2023

Plot of occurrence data:

References:

Jiang, S. & Wang, Y. (2023). Triquetrorhabdulus nanhaiensis, a new early Middle Miocene nannolith species from the South China Sea. Journal of Nannoplankton Research. 41(1): 27-32. gs O


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Triquetrorhabdulus nanhaiensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-4-2025

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1829 Go to Archive.is to create a permanent copy of this page - citation notes
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