INA16 Athens - September 2017

Prediscosphaera cretacea

Short diagnosis: Typical form, elliptical with diagonal cross but lacking other distinguishing features

Taxonomy:

Farinacci & Howe catalog pages: Coccolithophora cretacea * Deflandrius catinus * Prediscosphaera cretacea lata * Prediscosphaera decorata * Rhabdolithus intercisus *

Short diagnosis: Typical form, elliptical with diagonal cross but lacking other distinguishing features

Geological Range:
Last occurrence (top): at top of Maastrichtian Stage (100% up, 66Ma, in Maastrichtian stage). Data source: Lees & Bown 2005 - consistently present to end Cret
First occurrence (base): within BC27c subzone (100.07-100.54Ma, base in Albian stage). Data source: Burnett 1998

Plot of occurrence data:

• Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
• Triangles indicate an event for which a precise placement has been suggested
• Histogram - Neptune occurrence data from DSDP and ODP proceedings. Interpret with caution & read these notes
• Taxon plotted: Prediscosphaera cretacea, synonyms included - Deflandrius cretaceus; Deflandrius intercisus; Prediscosphaera cretacea; Prediscosphaera cretacea cretacea; Prediscosphaera cretacea lata; Prediscosphaera intercisa; Prediscosphaera intercisus; Prediscosphaera lata; Parent: P. cretacea group

Prediscosphaera cretacea compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-8-2017 Taxon Search: Advanced Search AphiaID: not found Go to Archive.is to create a permanent copy of this page - citation notes

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Mike Styzen (Noble Energy, US)

What is the smooth surface those bugs are sitting on?

[NB This comment refers to SEM images 88-2.jpg and US027.jpg in the collection at the top of the page - JRY March 2014]

8th March 2011 12:00am

Jeremy Young (NHM, UK)

It is on a cover slip, which does give a nice smooth surface, though i prefer now to use polycarboane filters as they are better for removing fine debris. NB These Prediscosphaera pages a prototype for the Mesozoic taxa, Jackie is currently building up the species list for these and then we should able to get pages populated quite rapidly.

10th March 2011 12:00am

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