Cribrocorona


Classification: Mesozoic -> Podorhabdales -> Axopodorhabdaceae -> Cribrocorona
Sister taxa: Podorhabdus, Hemipodorhabdus, Axopodorhabdus, Tetrapodorhabdus, Hexapodorhabdus, Octocyclus, Octopodorhabdus, Dodekapodorhabdus, Perissocyclus, Teichorhabdus, Cribrosphaerella, Ethmorhabdus, Nephrolithus, Psyktosphaera, Cribrocorona,

Distinguishing features: Subcircular with very high rim; central-area narrow, with grill.


Daughter taxa: (blue => in age window 0-800Ma)
One cycle regular the other appears to be a hemispherical mass of spines
Both cycles regular, grill in central area.
Specimens not identified to species level.

Taxonomy:

Citation: Cribrocorona Perch-Nielsen, 1973
Rank: Genus
Type species: Coccolithus gallicus Stradner, 1963

Farinacci & Howe catalog pages: Cribrocorona *

Distinguishing features: Subcircular with very high rim; central-area narrow, with grill.

Geological Range:
Last occurrence (top): at top of Maastrichtian Stage (100% up, 66Ma, in Maastrichtian stage). Data source: Total of range of species in this database
First occurrence (base): near base of Santonian Stage (5% up, 86.1Ma, in Santonian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 132-199. gs

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


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Cribrocorona compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-1-2020

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10305 Go to Archive.is to create a permanent copy of this page - citation notes



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