Coronocyclus nitescens

coronocyclus_nitescens.jpg
Citation: 
Coronocyclus nitescens (Kamptner, 1963) Bramlette and Wilcoxon, 1967 [Umbilicosphaera]

Description: Ring-shaped coccoliths with open central-area. No clear shield development, spines on distal side. Strongly birefringent.

Remarks:

Range: Palaeogene to NN6.

5-13nitescens.JPG 5-12nitescens.JPG 5-11nitescens.JPG 5-14nitescens_elliptical.JPG 5-15nitescens_elliptical.JPG
Coronocyclus nitescens Coronocylus nitescens - side view      
Cornit267-27NN2.JPG Cornit267-24NN2.JPG Cornit265-15NN5.JPG Cornit265-25NN5.JPG Cornit267-16NN2.JPG

 

 

Synonyms:

  • Coronocyclus serratus Hay, Mohler and Wade, 1966

Variant: Elliptical forms, with narrow rims, occur in NN5-6.

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Scratchpads developed and conceived by: Vince Smith, Simon Rycroft & Dave Roberts