Nannotax3 - ntax_mesozoic - Lithraphidites moray-firthensis

Lithraphidites moray-firthensis


Classification: ntax_mesozoic -> Nannoliths inc sedis -> Microrhabdulaceae -> Lithraphidites -> Lithraphidites moray-firthensis
Sister taxa: L. carniolensis ⟩⟨ L. charactozorro, L. grossopectinatus, L. kennethii, L. praequadratus, L. quadratus ⟩⟨ L. acutus, L. alatus, L. pseudoquadratus ⟩⟨ L. houghtonii, L. moray-firthensis ⟩⟨ L. aichmoides, L. magnus, L. pugio, L. bollii, L. sp.

Distinguishing features:
Parent taxon (Lithraphidites): Bladed, rod-shaped nannoliths typically tapering at both ends and with a cruciform cross-section and variably developed lateral projections; crystallographic c-axis perpendicular to length
This taxon: Lithraphidites with broad scalloped blades that terminate abruptly near the ends of the lith.


Taxonomy:

Citation: Lithraphidites moray-firthensis Jakubowski, 1986
Rank: Species

Farinacci & Howe catalog pages: L. moray-firthensis *

Distinguishing features:
Parent taxon (Lithraphidites): Bladed, rod-shaped nannoliths typically tapering at both ends and with a cruciform cross-section and variably developed lateral projections; crystallographic c-axis perpendicular to length
This taxon: Lithraphidites with broad scalloped blades that terminate abruptly near the ends of the lith.


Morphology:

Boreal distribution.

Size:


Ecology & Biogeography


Biology & life-cycles

Phylogenetic relations

Most likely ancestor: Lithraphidites houghtonii - at confidence level 3 (out of 5). Data source: .

Search data:
LITHS: nannolith-other, rod-shaped, CA: process, CROSS-POLARS: T-prominent,
Lith size: 5->10µm; Segments: 4->4;
Data source notes: illustrated specimens
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 BC20 zone (100% up, 123.9Ma, in Aptian stage). Data source: Bown et al. 1998 - zonal marker
First occurrence (base): at base of BC20 zone (0% up, 124.8Ma, in Aptian stage). Data source: Bown et al. 1998 - zonal marker

Plot of occurrence data:

References:

Bown, P. R., Rutledge, D. C., Crux, J. A. & Gallagher, L. T. (1998). Lower Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 86-131. gs O

Jakubowski, M. (1986). New calcareous nannofossil taxa from the Lower Cretaceous of the North Sea. INA Newsletter. 8: 38-42. gs V O

Jeremiah, J. (2001). A Lower Cretaceous nannofossil zonation for the North Sea Basin. Journal of Micropalaeontology. 20(1): 45-80. gs V O


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Lithraphidites moray-firthensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 3-12-2022

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10588 Go to Archive.is to create a permanent copy of this page - citation notes



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