Helicosphaera ampliaperta

Cenozoic Taxa

Helicosphaera ampliaperta

Edited by Jeremy Young on Wed, 09/03/2011 - 17:16

Helicosphaera ampliaperta Bramlette and Wilcoxon, 1967

Description: Similar to H. carteri but central-area open, and wing weaker.

Remarks:The wing can be indistinct making it possible to mistake H. ampliaperta for a placolith coccolith.

Original description:

Variant: H. porosa Lehotayova, 1985 - with grill in central-area.

Geological Time Data

Geological Time Periods:

NN4

NN2

Biblio Reference:

Young, JR. 1998. Neogene. Calcareous nannofossil biostratigraphy. :225-265.

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