Nannotax3 - ntax_main - Olladiscoaster Nannotax3 - ntax_main - Olladiscoaster

Olladiscoaster


Classification: ntax_main -> Discoasterales -> Discoasteraceae -> Discoaster -> D. musicus group -> Olladiscoaster
Sister taxa: Olladiscoaster, D. sanmiguelensis, D. musicus, D. virginianus, D. micros

Daughter taxa (time control age-window is: 0-800Ma)
Olladiscoaster tokerae

Olladiscoaster sp.


Taxonomy:
Citation: Olladiscoaster Varol & Bowman 2024
Taxonomic rank: genus
Taxonomic discussion: This group has only recently been recognised and it is not clear how well-separated  it is  from the rest of the Discoasteraceae.

Farinacci & Howe catalog pages:
Olladiscoaster


Morphology:
Genus introduced by Varol & Bowman 2024 for a group of discoasters without free arms, with well-developed sutural ridges and interveing depressions on the distal side and with a thick central area.

Search data:
Lith size: 0->0µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Middle Miocene, diverse and common in the lower part of NN6, and persists with lower diversity and abundance in to mid NN7 (Varol & Bowman 2024, fig. 6)
Last occurrence (top): at top of NN7 zone (100% up, 10.9Ma, in Tortonian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within NN5 zone (13.53-14.91Ma, base in Langhian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

References:

Varol, O. & Bowman, A. R. (2024). The new Middle Miocene genus Olladiscoaster, and related and associated discoasters. Grzybowski Foundation Special Publication. 28: 1-102. gs


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Olladiscoaster compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 5-3-2026

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1835 Go to Archive.is to create a permanent copy of this page - citation notes



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