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Discoaster druggii

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Cenozoic Taxa

Discoaster druggii

Edited by Lyndsey on Thu, 10/03/2011 - 13:16

Discoaster druggii Bramlette and Wilcoxon, 1967

Description: Like D. deflandrei but larger, >15μm, and with small bifurcations

Remarks: D. druggii is essentially a variety of D. deflandrei but is more consistently developed than most others. It is characterised by its large size, and also tapering rays ending in a terminal notch and lateral nodes, but no true bifurcations. A weak distal knob may be present but otherwise both sides are featureless.

Original description:

Discoaster druggi 030450.jpg

Geological Time Data
Geological Time Periods: 
NN3
NN2
Biblio Reference: 
Young, JR.  1998.  Neogene. Calcareous nannofossil biostratigraphy. :225-265.
Notes on occurrence information: 
In the absence of more reliable markers its first occurrence is used as the base of NN2.
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