Nannotax3 - ntax_mesozoic - Rhombolithion duodecostatum <title>Nannotax3 - ntax_mesozoic - Rhombolithion duodecostatum

Rhombolithion duodecostatum


Classification: ntax_mesozoic -> Stephanolithiales -> Stephanolithiaceae -> Rhombolithion -> Rhombolithion duodecostatum
Sister taxa: R. minutum, R. scutulatus, R. rhombicum, R. octocostatum, R. horrellii, R. rotatum, R. duodecostatum, R. sp.

Distinguishing features:
Parent taxon (Rhombolithion): Diamond-shaped; rim unicyclic (stradnerlithids).
This taxon: Rhombolithion with central area spanned by ~12 radial bars.


Taxonomy:

Citation: Rhombolithion duodecostatum (Goy in Goy et al., 1979) Perch-Nielsen, 1984
Rank: Species
Basionym: Diadorhombus duodecostatus Goy in Goy et al., 1979

Farinacci & Howe catalog pages: D. duodecostatus *

Distinguishing features:
Parent taxon (Rhombolithion): Diamond-shaped; rim unicyclic (stradnerlithids).
This taxon: Rhombolithion with central area spanned by ~12 radial bars.


Morphology:


Size:


Ecology & Biogeography


Biology & life-cycles

Phylogenetic relations

Search data:
LITHS: murolith, quadrate, CA: ca_disjunct, grill, process,
Lith size: 2->4µm;
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): within Early Toarcian Substage (178.24-182.70Ma, top in Toarcian stage). Data source: Goy et al. 1979
First occurrence (base): within Early Toarcian Substage (178.24-182.70Ma, base in Toarcian stage). Data source: Goy et al. 1979

Plot of occurrence data:

References:

Bown, P. R. & Young, J. R. (1997). Mesozoic calcareous nannoplankton classification. Journal of Nannoplankton Research. 19(1): 21-36. gs V O

Goy, G., Noël, D. & Busson, G. (1979). Les conditions de sédimentation des schistes-carton (Toarcien inf.) du bassin de Paris déduites de l'étude des nannofossiles calcaires et des diagraphies. Documents des laboratories de géologie Lyon. 75: 33-57. gs O

Perch-Nielsen, K. (1984b). Validation of new combinations. INA Newsletter. 6(1): 42-46. gs V O


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Rhombolithion duodecostatum compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 30-1-2023

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=11035 Go to Archive.is to create a permanent copy of this page - citation notes



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