Discoaster binodosus


Classification: Coccolithophores -> Discoasterales -> Discoasteraceae -> Discoaster -> D. nodifer group -> Discoaster binodosus
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 binodosus Martini, 1958
Rank: Species
Variants:
Notes & discussion: Intergrades with D. mediosus (see Remarks for that species).

Distinguishing features: Usually 8 rays with free ray length that approaches half the diameter of the central area or greater and prominent lateral nodes and pointed ray tips.

Farinacci & Howe catalog pages: Discoaster binodosus * , Helio-discoaster binodosus * , Discoaster binodosus binodosus * , Discoaster monstratus * , Discoaster mirus * , Helio-discoaster mirus * , Discoaster stradneri *

Search data:
TagsLITHS: nannolith-radiate, star-shaped, RIM: free-rays-long, tips w lateral nodes,
CSPH: not known, V-UNITS: all, R-UNITS: none, DETAILS: 1ou,
MetricsLith size: 8->17µm; Segments: 8->8;
Sources: size from Romein 1979 & OD
The morphological data given here can be used on the advanced search page. See also these notes

See also: Discoaster mediosus - similar but central area broader;Discoaster nodifer - similar but central area narrower;;

Geological Range:
Last occurrence (top): within NP15c subzone (42.87-44.12Ma, top in Lutetian stage). Data source: PRB entry to Nannotax
First occurrence (base): within NP10 zone (54.17-55.86Ma, base in Ypresian stage). Data source: PRB entry to Nannotax

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 binodosus, synonyms included - Discoaster binodosus; Discoaster binodosus binodosus; Discoaster binodosus subsp. binodosus; Discoaster minimus; Discoaster mirus; Discoaster monstratus; Discoaster binodosus;
  • space-time plot :: Samples map :: Parent: D. nodifer group

    References:

    Bown, P. R. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs

    Bown, P. R. (2010). Calcareous nannofossils from the Paleocene/Eocene Thermal Maximum interval of southern Tanzania (TDP Site 14). Journal of Nannoplankton Research. 31: 11-38. gs

    Bown, P. R. (2016). Paleocene calcareous nannofossils from Tanzania (TDP sites 19, 27 and 38). Journal of Nannoplankton Research. 36(1): 1-32. gs

    Bramlette, M. N. & Sullivan, F. R. (1961). Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology. 7(129-188): -. gs

    Deflandre, G. (1952). Classe des Coccolithophoridés. (Coccolithophoridae. Lohmann, 1902). In, Grassé, P. P. (ed.) Traite de Zoologie. Masson, Paris 439-470. gs

    Martini, E. (1958). Discoasteriden und verwandte Formen im NW-deutschen Eozän (Coccolithophorida). 1. Taxonomische Untersuchungen. Senckenbergiana Lethaea. 39: 353-388. gs

    Perch-Nielsen, K. (1971b). Elektronenmikroskopische untersuchungen an Coccolithen und verwandten Formen aus dem Eozan von Danemark. Biologiske Skrifter. Kongelige Danske Videnskabernes Selskab. 18(3): 1-76. gs

    Romein, A. J. T. (1979). Lineages in Early Paleogene calcareous nannoplankton. Utrecht Micropaleontological Bulletin. 22: 231-. gs

    Shepherd, C. L. & Kulhanek, D. K. (2016). Eocene nannofossil biostratigraphy of the mid-Waipara River section, Canterbury Basin, New Zealand. Journal of Nannoplankton Research. 26(1): 33-59. gs

    Theodoridis, S. (1983). On the legitimacy of the generic name Discoaster Tan 1927 ex Tan 1931. INA Newsletter. 5(1): 15-21. gs

    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 binodosus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-11-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=454 Go to Archive.is to create a permanent copy of this page - citation notes



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