Cylindralithus duplex


Classification: Mesozoic -> Stephanolithiales -> Stephanolithiaceae -> Cylindralithus -> Cylindralithus duplex
Sister taxa: C. biarcus, C. coronatus, C. sculptus, C. serratus, C. duplex, C. oweinae, C. nieliae, C. sp.,

Distinguishing features: Circular; open central area, both distal shield and proximal shield elevated


Taxonomy:

Citation: Cylindralithus duplex Perch-Nielsen, 1973
Rank: Species
Notes & discussion: Possibly a Watznaueriacean - like C. nudus

Farinacci & Howe catalog pages: Cylindralithus duplex *

Distinguishing features: Circular; open central area, both distal shield and proximal shield elevated

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Burnett (1998)
First occurrence (base): within Maastrichtian Stage (66.04-72.05Ma, base in Maastrichtian stage). Data source: Burnett (1998)

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Taxon plotted: Cylindralithus duplex, synonyms included - Cylindralithus duplex; space-time plot :: Samples map :: Parent: Cylindralithus

    References:

    Perch-Nielsen, K., (1973). Neue Coccolithen aus dem Maastrichtien von Danemark, Madagaskar und Agypten. Geological Society of Denmark, Bulletin, 22: 306-333.


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    Cylindralithus duplex compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-1-2019

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