Percivalia bullata


Classification: Mesozoic -> Eiffellithales -> Rhagodiscaceae -> Percivalia -> Percivalia bullata
Sister taxa: P. arata, P. bullata, P. dunkleyjonesii, P. fenestrata, P. hauxtonensis, P. howardii, P. imperfossa, P. pearsonii, P. pontilitha, P. porosa, P. nebulosa, P. sp.


Taxonomy:

Citation: Percivalia bullata Bergen, 1994
Rank: Species

Farinacci & Howe catalog pages: P. bullata *

Search data:
TagsLITHS: murolith, elliptical, hollow, CA: process, closed, CROSS-POLARS: rim-unicyclic, R-prominent,
MetricsLith size: 6->8µm;
Data source notes: original description
The morphological data given here can be used on the advanced search page. See also these notes

See also: Braloweria boletiformis - another species with a very large bulbous spine;

Geological Range:
Last occurrence (top): within Early Hauterivian Substage (133.09-133.88Ma, top in Hauterivian stage). Data source: Bergen, 1994 (original description)
First occurrence (base): within Late Berriasian Substage (139.39-141.93Ma, base in Berriasian stage). Data source: Bergen, 1994 (original description)

Plot of occurrence data:

References:

Bergen, J. A. (1994). Berriasian to early Aptian calcareous nannofossils from the Vocontian Trough (SE France) and Deep Sea Drilling Site 534: new nannofossil taxa and a summary of low-latitude biostratigraphic events. Journal of Nannoplankton Research. 16(2): 59-69. gs V O


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Percivalia bullata compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-10-2020

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10872 Go to Archive.is to create a permanent copy of this page - citation notes



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