Discoaster triuncinus

Taxonomy:

Distinguishing features: 3-rayed D. hamatus

Farinacci & Howe catalog pages: Discoaster triuncinus *

Geological Range:
Notes: Borowning et al record it as rangig into NN10 but with poorly constrained range due to rare and sproadic occurrence.
Last occurrence (top): in lower part of NN10 zone (30% up, 9.2Ma, in Tortonian stage). Data source: Browning et al 2017
First occurrence (base): within NN9 zone (9.53-10.55Ma, base in Tortonian stage). Data source: Browning et al 2017

Plot of occurrence data:

(NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Discoaster hamatus

References:

Browning, E., Bergen, J. A., Blair, S. A., Boesiger, T. M. & de Kaenel, E. (2017). Late Miocene to Late Pliocene taxonomy and stratigraphy of the genus Discoaster in the circum North Atlantic Basin: Gulf of Mexico and ODP Leg 154. Journal of Nannoplankton Research. 37(2-3): 189-214. gs :: view :: open

Theodoridis, S. (1984). Calcareous nannofossil biostratigraphy of the Miocene and revision of the helicoliths and discoasters. Utrecht Micropaleontological Bulletin. 32: 1-271. gs :: ::

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Discoaster triuncinus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 7-7-2020 Taxon Search: Advanced Search Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1646 Go to Archive.is to create a permanent copy of this page - citation notes

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