arrayname: original 
Nannotax3 - ntax_cenozoic - Lithostromation pyramidale Nannotax3 - ntax_cenozoic - Lithostromation pyramidale

Lithostromation pyramidale


Classification: ntax_cenozoic -> Nannolith families inc sed -> Lithostromationaceae -> Lithostromation -> Lithostromation pyramidale
Sister taxa: L. hohnensis, L. pyramidale, T. tripartitus ⟩⟨ L. martinii, L. nodosum, L. obscurum, L. reginum ⟩⟨ L. operosum, L. perdurum, L. simplex, L. biconvexitas, L. sp.

Taxonomy:

Citation: Lithostromation pyramidale (Steurbaut & Nolf 2021) Young 2023
Taxonomic rank: species
Basionym: Trochastrites pyramidalis Steurbaut & Nolf 2021

Distinguishing features:
Parent taxon (Lithostromation): Triangular to stellate nannoliths with porous structure formed from small crystallites. All show 3-fold symetry but with a wide range of forms.
This taxon: Pyramidal - 3 co-planar bifurcate rays and a fourth perpendicular

Farinacci & Howe catalog pages: T. pyramidalis *

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:
Last occurrence (top): at top of NP14 zone (100% up, 46.3Ma, in Lutetian stage). Data source: original description
First occurrence (base): within NP14 zone (46.29-49.11Ma, base in Ypresian stage). Data source: original description

Plot of occurrence data:

References:

Steurbaut, E. & Nolf, D. (2021). The Mont-des-Récollets section (N France): a key site for the Ypresian-Lutetian transition at mid-latitudes – reassessment of the boundary criterion for the base-Lutetian GSSP. Geodiversitas. 43(11): 311-363. gs

Young, J. R. (2023). Some proposed changes to the systematics of Cenozoic and Mesozoic nannoplankton. Journal of Nannoplankton Research. 41(1): 15-25. gs


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Lithostromation pyramidale compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 19-4-2025

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1719 Go to Archive.is to create a permanent copy of this page - citation notes
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