Discoaster cruciformis


Classification: Coccolithophores -> Discoasterales -> Discoasteraceae -> Discoaster -> D. nodifer group -> Discoaster cruciformis
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 cruciformis Martini 1958
Rank: Species

Distinguishing features: 4-rayed, symetric, ray tips curved downwards

Farinacci & Howe catalog pages: Discoaster cruciformis * , ,

Search data:
TagsLITHS: nannolith-radiate, star-shaped, RIM: free-rays-long, tips extended proximally,
CSPH: not known, V-UNITS: all, R-UNITS: none, DETAILS: 1ou,
MetricsLith size: 5->13µm; Segments: 4->4;
Sources: size from OD
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP14 zone (46.29-49.11Ma, top in Lutetian stage). Data source: Perch-Nielsen 1985
First occurrence (base): within NP12 zone (50.50-53.70Ma, base in Ypresian stage). Data source: 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 cruciformis, synonyms included - Discoaster cruciformis; space-time plot :: Samples map :: Parent: D. nodifer group

    References:

    Bramlette, M. N. & Sullivan, F. R. (1961). Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology. 7(129-188): -. 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. (1985a). Cenozoic calcareous nannofossils. In, Bolli, H. M. , Saunders, J. B. & Perch-Nielsen, K. (eds) Plankton Stratigraphy. Cambridge University Press, Cambridge 427-555. gs


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    Discoaster cruciformis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 21-7-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=462 Go to Archive.is to create a permanent copy of this page - citation notes



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