Nannotax3 - ntax_cenozoic - Discoaster istanbulensis

Discoaster istanbulensis

Classification: ntax_cenozoic -> Discoasterales -> Discoasteraceae -> Discoaster -> D. nodifer group -> Discoaster istanbulensis
Sister taxa: D. cruciformis, D. colletii, D. gemmifer, D. mediosus, D. binodosus, D. nodifer, D. distinctus, D. septemradiatus, D. tanii, D. tani ornatus, D. istanbulensis, D. martinii, D. williamsii, D. backmanii, D. okadai

Taxonomy:

Citation: Discoaster istanbulensis Sadek & Ozer, 1981

Rank: Species

Taxonomic discussion: Appears to be a senior synonym of D. ornatus Bown 2005

Distinguishing features: Ornate 5-rayed discoaster

Farinacci & Howe catalog pages: D. istanbulensis *

See also: Discoaster ornatus ;

Search data:

Tags	LITHS: nannolith-radiate, star-shaped, CROSS-POLARS: 1ou, V-prominent,
Metrics	Lith size: 10->15µm; Segments: 5->5; Data source notes: size from illustrated specs

The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Eocene Epoch (33.89-55.96Ma, top in Priabonian stage). Data source: Sadek & Ozer 1981
First occurrence (base): within Eocene Epoch (33.89-55.96Ma, base in Ypresian stage). Data source: Sadek & Ozer 1981

Plot of occurrence data:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
(NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: D. nodifer group

References:

Sadek, A. & Ozer, O. (1981). Two new discoasters from Turkey. Revista Española de Micropaleontología. 13(1): 43-45. gs

Discoaster istanbulensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-4-2021

Taxon Search:

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=472 Go to Archive.is to create a permanent copy of this page - citation notes

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