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Nannotax3 - ntax_cenozoic - Nivisolithus kovacicii Nannotax3 - ntax_cenozoic - Nivisolithus kovacicii

Nivisolithus kovacicii


Classification: ntax_cenozoic -> Nannolith families inc sed -> Ceratolithaceae -> Nivisolithus -> Nivisolithus kovacicii
Sister taxa: N. kovacicii, N. vrabacii

Taxonomy:

Citation: Nivisolithus kovacicii Coric, in Coric et al. 2023
Taxonomic rank: species

Distinguishing features:
Parent taxon (Nivisolithus): one end obliquely truncated, occur in radial groups
This taxon: Laths with bifurcations at the distal end

Farinacci & Howe catalog pages: N. kovacicii *


Morphology:

Rod shaped, formed of 3 blades, wth c-axis parallel to length. Sometimes occurs in radial groups

Size:
8-14 µm


Phylogenetic relations

Included in the Ceratolithaceae by Coric et al. 2023 since it resembles Triquetrorhabdulus in shape, size and crystallography. However, Ceratollthaceae are not common in Paratethys and the occurrence of specimens in radial groups is anomalous for the family. An alternative possibility is that these are Ascidian spicules. [my interpretation - JRY 2024]

Search data:
LITHS: nannolith-other, nannolith-radiate, rod-shaped,
CSPH: equant, monomorphic, CROSS-POLARS: 1ou, R-prominent,
Lith size: 8->14µm; Segments: 3->3; Liths per sphere: 4->6
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Serravallian Stage (11.62-13.82Ma, top in Serravallian stage). Data source: Ćorić et al. 2023
First occurrence (base): within Serravallian Stage (11.62-13.82Ma, base in Serravallian stage). Data source: Ćorić et al. 2023

Plot of occurrence data:

References:

Ćorić, S., Galovic, I. & Matošević, M. (2023). New calcareous nannofossils from the Middle to Late Miocene of the North Croatian Basin, Central Paratethys. Journal of Nannoplankton Research. 41(1): 1-12. gs


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

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1821 Go to Archive.is to create a permanent copy of this page - citation notes
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