Varol Research | Corollithion kennedyi

Set number: 2976

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Corollithion kennedyi, Early Cenomanian, Vergons, SE France

Set number: 2977

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10µm

Corollithion kennedyi, Early Cenomanian, Vergons, SE France

Set number: 2978

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10µm

Corollithion kennedyi, Early Cenomanian, Vergons, SE France

Set number: 2980

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Corollithion kennedyi, Middle Cenomanian, Vergons, SE France

Set number: 2979

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Corollithion kennedyi, Middle Cenomanian, Vergons, SE France

Final Epithet

Corollithion kennedyi Crux, 1981

Basionym

Corollithion kennedyi Crux, 1981

Optical Properties

The narrow outer wall remains in constant extinction, whereas the wider inner wall and the broad central cross exhibit white interference colours in plan view under crossed polars.

Remarks

Moderately elongated hexagonal species of Corollithion characterised by a double protolith wall surrounding a central area that is almost entirely occupied by a cross, whose arms are composed of multiple segments arranged in two longitudinal halves.

References

Crux, J. A., 1981. New calcareous nannofossil taxa from the Cretaceous of South East England. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 1981, 633-640.

Taxonomy

Corollithion

Biostratigraphy

Stratigraphic Range

Early Cenomanian - Late Cenomanian

Age (Ma)

100.45 - 94.64

Holotype

Corollithion kennedyi Crux, 1981

Cenomanian

Aker's Steps, Dover, UK