Nannotax3 - ntax_main - Staurolithites dorfii Nannotax3 - ntax_main - Staurolithites dorfii

Staurolithites dorfii


Classification: ntax_main -> Mesozoic nannofossils -> Eiffellithales -> Chiastozygaceae -> Staurolithites -> Staurolithites dorfii
Sister taxa: << < S. stradneri ⟩⟨ S. dentatus, S. eiffellithoides, S. flavus, S. halfanii, S. minutus, S. ngurumahambaensis, S. quadriarcullus, S. siesseri ⟩⟨ S. coroniformis, S. gausorhethium, S. leptostaurus ⟩⟨ S. ormae, S. handleyi, S. laffittei, S. dorfii, S. lumina ⟩⟨ S. imbricatus, S. dicandidula, S. mitcheneri ⟩⟨ S. angustus, S. mutterlosei, S. zoensis ⟩⟨ S. aachenus, S. aenigma, S. ellipticus, S. elongatus, S. integer, S. mielnicensis, S. parma, S. sp.

Taxonomy:

Citation: Staurolithites dorfii (Bukry, 1969) Burnett, 1997
Taxonomic rank: species
Basionym: Vagalapilla dorfii Bukry, 1969

Distinguishing features:
Parent taxon (Staurolithites): Loxolith muroliths with relatively narrow rim and wide central area spanned by axial cross bars. The cross is usually spine bearing. Inner/proximal rim cycle is variably developed and so the LM image may be unicyclic or bicyclic. NB The bicyclic/unicyclic separation is simply controlled by how far the inwards the R-units develop so, although it is a useful identification criterion, it almost certainly has no real phylogenetic significance and would be a very poor character for defining genera.
This taxon: Medium sized (5-6 µm), broadly elliptical with bicylic rim, wide central area and narrow crossbars.

Farinacci & Howe catalog pages: V. dorfii *

Search data:
LITHS: murolith, elliptical, CA: cross-axial, ca_disjunct, process, CROSS-POLARS: rim-bicyclic, V-prominent,
Lith size: 5->6µm;
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 Campanian Stage (72.17-83.65Ma, top in Campanian stage). Data source: Burnett 1998
First occurrence (base): within Campanian Stage (72.17-83.65Ma, base in Campanian stage). Data source: Burnett 1998

Plot of occurrence data:

References:

Bukry, D. (1969). Upper Cretaceous coccoliths from Texas and Europe. University of Kansas Paleontological Contributions, Articles. 51 (Protista 2): 1-79. gs O

Burnett, J. A. (1997c). New species and new combinations of Cretaceous nannofossils and a note on the origin of Petrarhabdus (Deflandre) Wise & Wind. Journal of Nannoplankton Research. 19(2): 133-146. gs

Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 132-199. gs O


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Staurolithites dorfii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 21-6-2025

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=11118 Go to Archive.is to create a permanent copy of this page - citation notes



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