Taxonomy:
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
Farinacci & Howe catalog pages: A. valentinei *
Size:
LITHS: nannolith-radiate, circular, star-shaped, cylindrical, hollow, CROSS-POLARS: rim-unicyclic, R-prominent, |
Lith size: 8->15µm; Segments: 7->7; Data source notes: original description & illustrated specimens |
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:
Howe, R. W. (2017). Acadialithus, a new nannofossil genus from offshore Eastern Newfoundland, Canada. Journal of Nannoplankton Research. 37(1): 61-66. gs References:
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Acadialithus valentinei compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-6-2025
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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