Coccolithus eopelagicus


Classification: Coccolithophores -> Coccolithales -> Coccolithaceae -> Coccolithus -> C. pelagicus group -> Coccolithus eopelagicus
Sister taxa: C. crassus, C. pelagicus, C. eopelagicus, C. miopelagicus, C. latus, C. bownii, C. tenuiforatus,

Taxonomy:

Citation: Coccolithus eopelagicus (Bramlette & Riedel, 1954) Hay, Mohler & Wade 1966
Rank: Species
Basionym: Tremalithus eopelagicus Bramlette & Riedel, 1954
Notes & discussion: This combination is usually cited as Coccolithus eopelagicus (Bramlette & Riedel, 1954) Bramelette & Sullivan 1961. However as noted in the comments (see below) the combnaiotn was not validly introduced in Brameltte & Sullivan 1961. It was, however, validly used by Hay et al 1966.     

Distinguishing features: Like C. pelagicus but very large (>14 µm).

Farinacci & Howe catalog pages: Tremalithus eopelagicus *

Search data:
TagsLITHS: placolith, elliptical, RIM: inner-tube-broad, psh-bicyclic, CA: vacant,
CSPH: spherical, equant, monomorphic, V-UNITS: distal shield, px-tube, V-prominent, R-UNITS: ds-tube, prox shield, R-prominent, DETAILS: rim-bicyclic, isogyres oblique,
MetricsLith size: 14->20µm;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP23 zone (29.62-32.02Ma, top in Rupelian stage). Data source: [PRB rough estimate]
First occurrence (base): within NP14 zone (46.29-49.11Ma, base in Ypresian stage). Data source: [PRB rough estimate]

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: Coccolithus eopelagicus, synonyms included - Coccolithus eopelagicus; Ericsonia eopelagica; Tremalithus eopelagicus;
  • space-time plot :: Samples map :: Parent: C. pelagicus group

    References:

    Bown, P. R. & Dunkley Jones, T. (2012). Calcareous nannofossils from the Paleogene equatorial Pacific (IODP Expedition 320 Sites U1331-1334). Journal of Nannoplankton Research. 32(2): 3-51. gs :: view :: open

    Bown, P. R. & Newsam, C. (2017). Calcareous nannofossils from the Eocene North Atlantic Ocean (IODP Expedition 342 Sites U1403–1411). Journal of Nannoplankton Research. 37(1): 25-60. gs :: view :: open

    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 :: view :: open

    Bown, P. R., Gibbs, S. J., Sheward, R., O’Dea, S. & Higgins, D. (2014). Searching for cells: the potential of fossil coccospheres in coccolithophore research. Journal of Nannoplankton Research. 34(special): 5-21. gs :: view :: open

    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(2): 129-188. gs :: ::

    Fioroni, C., Villa, G., Persico, D. & Jovane, L. (2015). Middle Eocene-Lower Oligocene calcareous nannofossil biostratigraphy and paleoceanographic implications from Site 711 (equatorial Indian Ocean). Marine Micropaleontology. 118: 50-62. gs :: ::

    Hay, W. W., Mohler, H. P. & Wade, M. E. (1966). Calcareous nannofossils from Nal'chik (northwest Caucasus). Eclogae Geologicae Helvetiae. 59: 379-399. gs :: view :: open

    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 :: view :: open

    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 :: view :: open


    nannotaxlogo400px

    Coccolithus eopelagicus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 5-8-2020

    Taxon Search:
    Advanced Search

    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=322 Go to Archive.is to create a permanent copy of this page - citation notes



    Comments (1)

    Sort By
    Page 1 of 1
     
    Gravatar
    Juan P. Pérez Panera (Los Talas, Argentina)

    I think the combination to Coccolithus eopelagicus in Bramlette and Sullivan (1961) is not valid. The only mention of C. eopelagicus in the paper is when they are describing the new sp. Coccolithus staurion (page 141). Some paragraphs above they state that Tremalithus is a paragenus, and unnecesary, but they don´t make a proper emendation for the genus Coccolithus anyway.

    Gravatar
    Jeremy Young (Tonbridge, UK)

    Hi Juan Pablo - I think you right here. The prime source for combinations are the Loeblich & Tappan indices and their continuation in the INA Newsletter. However, here I think they are ni error. Loeblich & Tappan 1966 indicate that the combination Coccolithus eopelagicus (Bramlette & Riedel, 1954) Bramlette & Sullivan, 1961 is valid, but they cite it as being established on page 141 which as you say simply includes a passing reference to the name. New combinations proposed after 1953 require full and direct citation of the basionym (ICBN Art 33 paragraph4; now ICN Art 41.5). No citation of the basioym is given by Bramlette & Sullivan 1961. It looks like Loeblich & Tappan made a (rare) mistake here, since they do mark other combinations as invalid under ICBN At 33 para 4. Given this the authorship for the combination is probably either Levin 1965 or Hay et al 1966. (NB All references cited are in the nannotax reference list).

    Page 1 of 1
     

    Add Comment

    * Required information
    1000
    Captcha Image
    Powered by Commentics