Discoaster moorei


Classification: Coccolithophores -> Discoasterales -> Discoasteraceae -> Discoaster -> D. exilis group -> Discoaster moorei
Sister taxa: D. exilis, D. cauliflorus, D. moorei, D. extensus, D. discissus ⟩⟨ D. bollii ⟩⟨ D. petaliformis, D. signus, D. apetalus

Taxonomy:

Citation: Discoaster moorei Bukry 1971
Rank: Species

Distinguishing features: Asymetric 5-rayed discoaster with bifurcations.

Farinacci & Howe catalog pages: D. moorei *


Morphology:

Search data:
TagsLITHS: nannolith-radiate, asymmetric, star-shaped, CROSS-POLARS: 1ou, V-prominent,
MetricsLith size: 8->18µm; Segments: 5->5;
Data source notes: size from OD
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Specimens can occur throughout the Miocene, and even the Oligocene, but more characteristic of the mid Miocene
Last occurrence (top): within NN5 zone (13.53-14.91Ma, top in Serravallian stage). Data source: Perch-Nielsen 1985
First occurrence (base): within NN4 zone (14.91-17.95Ma, base in Burdigalian stage). Data source: Perch-Nielsen 1985

Plot of occurrence data:

References:

Bown, P. R. & Dunkley Jones, T. (2006). New Paleogene calcareous nannofossil taxa from coastal Tanzania: Tanzania Drilling Project Sites 11 to 14. Journal of Nannoplankton Research. 28(1): 17-34. gs V O

Bukry, D. (1971a). Discoaster evolutionary trends. Micropaleontology. 17: 43-52. gs

Dunkley Jones, T., Bown, P. R. & Pearson, P. (2009). Exceptionally well preserved upper Eocene to lower Oligocene calcareous nannofossils (Prymnesiophycidae) from the Pande Formation (Kilwa Group), Tanzania. Journal of Systematic Palaeontology. 7(4): 359-411. gs

Perch-Nielsen, K. (1985a). Cenozoic calcareous nannofossils. In, Bolli, H. M. , Saunders, J. B. & Perch-Nielsen, K. (eds) Plankton Stratigraphy. Cambridge University Press, Cambridge 427-555. gs

Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 225-265. gs V O


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Discoaster moorei compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-10-2020

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=484 Go to Archive.is to create a permanent copy of this page - citation notes



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