Nannotax3 - ntax_mesozoic - Acadialithus valentinei Nannotax3 - ntax_mesozoic - Acadialithus valentinei

Acadialithus valentinei


Classification: ntax_mesozoic -> Nannoliths inc sedis -> Nannoliths inc sed - radiate multielement -> Acadialithus -> Acadialithus valentinei
Sister taxa: A. dennei, A. valentinei

Distinguishing features:
Parent taxon (Acadialithus): Squat tube-shaped nannoliths; wall formed of two vertically stacked cycles, with 6-7 elements per cycle; wide central opening; c-axes oblique
This taxon: Acadialithus with 7 elements in each wall cycle


Taxonomy:

Citation: Acadialithus valentinei Howe 2017
taxonomic rank: Species

Farinacci & Howe catalog pages: A. valentinei *

Distinguishing features:
Parent taxon (Acadialithus): Squat tube-shaped nannoliths; wall formed of two vertically stacked cycles, with 6-7 elements per cycle; wide central opening; c-axes oblique
This taxon: Acadialithus with 7 elements in each wall cycle


Size:
Holotype: Maximum diameter (including lateral projections) = 8.0μm. Diameter of the central opening = 4.4μm. Width of the wall = 1.8μm.

Search data:
LITHS: nannolith-radiate, circular, star-shaped, cylindrical, hollow, CA: vacant, CROSS-POLARS: rim-unicyclic, R-prominent,
Lith size: 8->15µm; Segments: 7->7;
Data source notes: original description & 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 Late Tithonian Substage (143.10-145.00Ma, top in Tithonian stage). Data source: Howe 2017
First occurrence (base): within Late Tithonian Substage (143.10-145.00Ma, base in Tithonian stage). Data source: Howe 2017

Plot of occurrence data:

References:

Howe, R. W. (2017). Acadialithus, a new nannofossil genus from offshore Eastern Newfoundland, Canada. Journal of Nannoplankton Research. 37(1): 61-66. gs


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Acadialithus valentinei compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 25-2-2024

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10004 Go to Archive.is to create a permanent copy of this page - citation notes
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