Sphenolithus triangularis


Classification: ntax_cenozoic -> Discoasterales -> Sphenolithaceae -> Sphenolithus -> S. predistentus group -> Sphenolithus triangularis
Sister taxa: S. ciperoensis, S. distentus, S. predistentus ⟩⟨ S. patifunditus, S. bulbulus, S. tawfikii, S. celsus, S. peartiae, S. akropodus, S. tribulosus ⟩⟨ S. directus, S. avis, S. umbrellus, S. triangularis ⟩⟨ S. intercalaris, S. obtusus

Taxonomy:

Citation: Sphenolithus triangularis Bergen & de Kaenel, in Bergen et al. 2017
Rank: species

Distinguishing features: Triangular and wider than high

Farinacci & Howe catalog pages: S. triangularis *

Search data:
TagsLITHS: nannolith-radiate, cylindrical, CA: process, CROSS-POLARS: R-prominent,
MetricsLith size: 0->0µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP25 zone (24.40-26.84Ma, top in Chattian stage). Data source: Bergen et al 2017
First occurrence (base): within NP23 zone (29.62-32.02Ma, base in Rupelian stage). Data source: Bergen et al 2017

Plot of occurrence data:

References:

Bergen, J. A., de Kaenel, E., Blair, S. A., Boesiger, T. M. & Browning, E. (2017). Oligocene-Pliocene taxonomy and stratigraphy of the genus Sphenolithus in the circum North Atlantic Basin: Gulf of Mexico and ODP Leg 154. Journal of Nannoplankton Research. 37(2-3): 77-112. gs V O

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Sphenolithus triangularis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-4-2021

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1622 Go to Archive.is to create a permanent copy of this page - citation notes
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