Discoaster multiradiatus


Classification: Coccolithophores -> Discoasterales -> Discoasteraceae -> Discoaster -> D. multiradiatus group -> Discoaster multiradiatus
Sister taxa: D. delicatus, D. multiradiatus, D. lenticularis, D. wemmelensis, D. mohleri, D. nobilis, D. salisburgensis, D. barbadiensis, D. spinescens, D. kuepperi, D. splendidus, D. diastypus, D. bifax,

Taxonomy:

Citation: Discoaster multiradiatus Bramlette & Riedel, 1954
Rank: Species
Variants: Discoaster multiradiatus peduncolatus Bystricka (1966) - with thickened centre
Discoaster multiradiatus robustus Bystricka (1966) - more massive with fewer rays (15-18)
Synonyms: Discoaster perpolitus Martini 1961

Distinguishing features: Large to very large rosette-shaped discoasters; 16-35 rays joined along most of their length with simple ray tips.

Farinacci & Howe catalog pages: Discoaster multiradiatus * , Discoaster perpolitus * , Discoaster multiradiatus peduncolatus * , Discoaster multiradiatus robustus *

Search data:
TagsLITHS: nannolith-radiate, rosette-shaped, RIM: free-rays-short,
CSPH: not known, V-UNITS: all, R-UNITS: none, DETAILS: 1ou,
MetricsLith size: 8->22µm; Segments: 15->20;
Sources: size from OD, Romein 1979 & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: HCO at top of NP10 according to Agnini et al. (2007, fig. 9)
Last occurrence (top): within NP11 zone (53.70-54.17Ma, top in Ypresian stage). Data source: PRB entry to Nannotax
First occurrence (base): at base of NP9 zone (0% up, 57.2Ma, in Thanetian stage). Data source: zonal marker (Perch-Nielsen 1985)

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 multiradiatus, synonyms included - Discoaster multiradiatus; Discoaster perpolitus;
  • space-time plot :: Samples map :: Parent: D. multiradiatus 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

    Bralower, T. J. & Self-Trail, J. (2016). Nannoplankton malformation during the Paleocene-Eocene Thermal Maximum and its paleoecological and paleoceangraphic significance. Paleoceanography. 31: 1-17. gs

    Bramlette, M. N. & Riedel, W. R. (1954). Stratigraphic value of discoasters and some other microfossils related to Recent coccolithophores. Journal of Paleontology. 28: 385-403. gs

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

    Bybell, L. M. & Self-Trail, J. (1995). Evolutionary, biostratigraphic and taxonomic study of calcareous nanofossils from a continuous Palaeocene-Eocene boundary section in New Jersey. US Geological Survey professional paper. 1554: 1-36. gs

    Bystricka, H. (1966). Nouvelles especes du genre Discoaster du Paleogene des Karpates Occidentales. Geologicky Sbornik. 17: 237-240. gs

    Martini, E. (1961). Nannoplankton aus dem Tertiär und der obersten Kreide von SW-Frankreich. Senckenbergiana Lethaea. 42: 1-32. gs

    Müller, C. (1974b). Calcareous nannoplankton, Leg 25 (Western Indian Ocean). Initial Reports of the Deep Sea Drilling Project. 25: 579-633. gs

    Okada, H. & Thierstein, H. R. (1979). Calcareous nannoplankton - Leg 43, Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 43: 507-573. gs

    Pospichal, J. J. & Wise, S. W. (1990c). Paleocene to Middle Eocene calcareous nannofossils of ODP sites 689 and 690, Maud Rise, Weddell Sea. Proceedings of the Ocean Drilling Program. Scientific Results. 113: 613-638. gs

    Self-Trail, J. (2011). Paleogene Calcareous Nannofossils of the South Dover Bridge core, Southern Maryland (USA). Journal of Nannoplankton Research. 32(1): 1-28. 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. (1984). Calcareous nannofossil biostratigraphy of the Miocene and revision of the helicoliths and discoasters. Utrecht Micropaleontological Bulletin. 32: 1-271. gs

    Wise, S. W. & Wind, F. H. (1977). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 36 drilling on the Falkland Plateau, south-west Atlantic sector of the Southern Ocean. Initial Reports of the Deep Sea Drilling Project. 36(269-491): -. gs


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    Discoaster multiradiatus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 19-1-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=485 Go to Archive.is to create a permanent copy of this page - citation notes



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