Staurolithites


Classification: Coccolithophores -> Mesozoic Survivors -> Chiastozygaceae -> Staurolithites
Sister taxa: Jakubowskia, Neocrepidolithus, Staurolithites, Zeugrhabdotus,

Distinguishing features: Murolith (loxolith) coccoliths 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.


Daughter taxa: (blue => in age window 0-800Ma)
Small (<4 µm) elliptical muroliths with narrow bicyclic rim and narrow central area spanned by a small axial cross.
Specimens which cannot be assigned to any established species

Taxonomy:

Citation: Staurolithites Caratini, 1963
Rank: Genus
Type species: Staurolithites laffittei Caratini, 1963

Farinacci & Howe catalog pages: Staurolithites *

Distinguishing features: Murolith (loxolith) coccoliths 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.

Search data:
TagsLITHS: murolith, elliptical, RIM: outer wall cw-imbricate, CA: cross, cross-axial,
CSPH: not known, V-UNITS: outer-rim, R-UNITS: inner-rim,
MetricsLith size: 2->4µm;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): in lower part of Ypresian Stage (28% up, 53.7Ma, in Ypresian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Selandian Stage (4% up, 61.5Ma, in Selandian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Bown, P.R. & Cooper, M.K.E., (1998). Jurassic. In: Bown, P.R. (Editor), Calcareous nannofossil biostratigraphy. British Micropalaeontological Society Publication Series. Chapman & Hall, pp. 34-85. GS

Caratini, C. (1963). Contribution à l'étude des coccolithes du Cénomanien supérieur et du Turonien de la région de Rouen, Université d'Alger, Faculté des Sciences, Publication du Laboratoire de Géologique Appliquée. GS


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Staurolithites compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 25-5-2019

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1328 Go to Archive.is to create a permanent copy of this page - citation notes



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