Metadoga


Classification: Mesozoic -> Holococcoliths -> Rarer genera -> Metadoga
Sister taxa: Bifidalithus, Bilapillus, Multipartis, Munarinus, Octolithus, Okkolithus, Ottavianus, Pharus, Ramsaya, Russellia, Saepiovirgata, Acuturris, Anfractus, Duocameratus, Lacunolithus-Bown, Metadoga, Nicholasia, Paulpearsonia, Petrobrasiella, Pseudoconus, Semihololithus, Stereorhabdus, Tanzanella, Thecatus, unidentified holococcoliths,

Distinguishing features: Cavate, conical-flask shaped holococcolith with lid and internal partition.


Daughter taxa: (blue => in age window 0-800Ma)
Small (holotype 4.4 ┬Ám) species with flask-like outline and lacking internal partition
Cavate, conical-flask shaped holococcolith with lid and internal partition.
Specimens not identified to species level

Taxonomy:

Citation: Metadoga Wind & Cepek, 1979
Rank: Genus
Type species: Metadoga mercurius Wind & Cepek, 1979

Farinacci & Howe catalog pages: Metadoga *

Distinguishing features: Cavate, conical-flask shaped holococcolith with lid and internal partition.

Geological Range:
Last occurrence (top): at top of Campanian Stage (100% up, 72.1Ma, in Campanian stage). Data source: Total of range of species in this database
First occurrence (base): in mid part of Valanginian Stage (54% up, 136.4Ma, in Valanginian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Bown, P. R., Rutledge, D. C., Crux, J. A. & Gallagher, L. T. (1998). Early Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 86-131. gs

Wind, F. H. & Cepek, P. (1979). Lower Cretaceous calcareous nannoplankton from DSDP Hole 397A (northwest African Margin). Initial Reports of the Deep Sea Drilling Project. 47A: 221-235. gs


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Metadoga compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 25-8-2019

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10651 Go to Archive.is to create a permanent copy of this page - citation notes



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