Braarudosphaera bigelowii


Classification: Mesozoic -> Braarudosphaerales -> Braarudosphaeraceae -> Braarudosphaera -> Braarudosphaera bigelowii
Sister taxa: B. amputans, B. batilliformis, B. bigelowii, B. pseudobatilliformis, B. turbinea, B. wendlerae, B. stenorhetha, B. africana, B. hockwoldensis, B. primula, B. regularis, B. quinquecostata, B. sp.,

Distinguishing features: Braarudosphaera with pentagonal outline.


Taxonomy:

Citation: Braarudosphaera bigelowii (Gran & Braarud, 1935) Deflandre, 1947
Rank: Species
Basionym: Pontosphaera bigelowii Gran & Braarud, 1935
Variants: Braarudosphaera imbricata Manivit 1966
Braarudosphaera bigelowi imbricata Bukry 1969
Although separately described both names refer to forms with imbricate elements
Synonyms: Micrantholithus lidiae Górka 1957 - very poor description but appears to be poorly preserved B. bigelowii

Farinacci & Howe catalog pages: Pontosphaera bigelowii [no catalog entry yet], Micrantholithus lidiae * , Pontosphaera bigelowi *

Distinguishing features: Braarudosphaera with pentagonal outline.

Geological Range:
Last occurrence (top): Extant Data source: present in the plankton (Young et al. 2003)
First occurrence (base): within Cenomanian Stage (93.90-100.50Ma, base in Cenomanian stage). Data source: Burnett 1998

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Braarudosphaera

    References:

    Bukry, D. (1969). Upper Cretaceous coccoliths from Texas and Europe. The University of Kansas Paleontological Contributions. Article 51 (Protista 2): 1-79. gs

    Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 132-199. gs

    Deflandre, G. (1947a). Braarudosphaera nov. gen., type d'une famille nouvelle de Coccolithophorides actuels a elements composites. Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences. Paris. 225: 439-441. gs

    Górka, H. (1957). Les Coccolithophoridés du Maestrichtien supérieur de Pologne. Acta Palaeontologica Polonica. 2: 239-284. gs

    Gran, H. H. & Braarud, T. (1935). A quantitative study of the phytoplankton in the Bay of Fundy and the Gulf of Maine (including observations on hydrography, chemistry and turbidity). Journal of the Biological Board of Canada. 1: 279-467. gs

    Manivit, H. (1966). Sur quelques coccolithes nouveaux du Néocomien. Compte Rendue Sommaire de la Société Géologique de France. 7: 267-268. gs


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    Braarudosphaera bigelowii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-8-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10103 Go to Archive.is to create a permanent copy of this page - citation notes



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