Discoaster mendomobensis


Classification: Coccolithophores -> Discoasterales -> Discoasteraceae -> Discoaster -> D. variabilis group -> Discoaster mendomobensis
Sister taxa: D. surculus, D. toralus, D. pseudovariabilis, D. subsurculus, D. variabilis, D. icarus, D. pansus, D. pansulus, D. decorus, D. loeblichii, D. mendomobensis,

Taxonomy:

Citation: Discoaster mendomobensis Wise 1973
Rank: Species

Distinguishing features: Like D. variabilis but bifurcations narrow and tapering, central area broad

Farinacci & Howe catalog pages: Discoaster mendomobensis *


Morphology remarks: 6-rayed with lare central area, bifurcations narrow and tapering

Size: 17-25 µm

Search data:
TagsLITHS: nannolith-radiate, star-shaped, RIM: tips-bifurcate, free-rays-short, CA: process, PROCESS: boss, boss-proximal,
CSPH: not known, V-UNITS: all, V-prominent, R-UNITS: none, DETAILS: 1ou,
MetricsLith size: 17->25µm; Segments: 6->6;
Sources: size from OD
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Described from off California. Not widespread but appears to be distinctive.
Last occurrence (top): within Late Miocene Sub-Epoch (5.33-11.62Ma, top in Messinian stage). Data source: Wise 1973
First occurrence (base): within Late Miocene Sub-Epoch (5.33-11.62Ma, base in Tortonian stage). Data source: Wise 1973

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Discoaster mendomobensis, synonyms included - Discoaster mendomobensis;
  • space-time plot :: Samples map :: Parent: D. variabilis group

    References:

    Wise, S. W. (1973). Calcareous nannofossils from cores recovered during Leg 18, Deep Sea Drilling Project: biostratigraphy and observations on diagenesis. Initial Reports of the Deep Sea Drilling Project. 18: 569-615. gs


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    Discoaster mendomobensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-2-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=481 Go to Archive.is to create a permanent copy of this page - citation notes



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