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
| Daughter taxa (time control age-window is: 0-800Ma) | ||||
| | | | Staurolithites primaevus Small (<4 µm) elliptical muroliths with narrow bicyclic rim and narrow central area spanned by a small axial cross. |
| | | | Staurolithites sp. Specimens which cannot be assigned to any established species |
Taxonomy:
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.
Farinacci & Howe catalog pages: Staurolithites *
Search data:| Tags | LITHS: |
| Metrics | Lith size: 2->4µm; |
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:
Bown, P. R. & Cooper, M. K. E. (1998). Jurassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 34-85. gs Caratini, C. (1963). Contribution à l'étude des coccolithes du Cénomanien supérieur et du Turonien de la région de Rouen. PhD thesis, Université d'Alger, Faculté des Sciences, Publication du Laboratoire de Géologique Appliquée. -. gsReferences:
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Staurolithites compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 2-3-2021
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