Discoaster gemmulatus


Classification: Coccolithophores -> Discoasterales -> Discoasteraceae -> Discoaster -> D. pentaradiatus group -> Discoaster bellus -> Discoaster gemmulatus
Sister taxa: D. astellaris, D. gemmulatus,

Taxonomy:

Citation: Discoaster gemmulatus Blair & Bergen, in Blair et al. 2017
Rank: species

Distinguishing features: Like D. bellus but with weak central knob

Farinacci & Howe catalog pages: Discoaster gemmulatus *


Evolution & Phylogeny: Suggested by Blair et al (2017) to be an evolutionary intermediate between D. bellus and D. quinqueramus

Search data:
Tags
MetricsLith size: 0->0┬Ám;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Range similar to D. bellus.
Last occurrence (top): within NN11 zone (5.59-8.29Ma, top in Messinian stage). Data source: Blair et al 2017
First occurrence (base): within NN8 zone (10.55-10.89Ma, base in Tortonian stage). Data source: Blair 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 bellus

    References:

    Blair, S. A., Bergen, J. A., de Kaenel, E., Browning, E. & Boesiger, T. M. (2017). Upper Miocene-Lower Pliocene taxonomy and stratigraphy in the circum North Atlantic Basin: radiation and extinction of Amauroliths, Ceratoliths and the D. quinqueramus lineage. Journal of Nannoplankton Research. 37(2-3): 113-144. gs


    nannotaxlogo400px

    Discoaster gemmulatus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-10-2019

    Taxon Search:
    Advanced Search

    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1593 Go to Archive.is to create a permanent copy of this page - citation notes



    Comments (0)

    No comments yet. Be the first!

    Add Comment

    * Required information
    1000
    Captcha Image
    Powered by Commentics