Broinsonia enormis


Classification: Mesozoic -> Arkhangelskiales -> Arkhangelskiellaceae -> Broinsonia -> Broinsonia enormis
Sister taxa: B. parca, B. enormis, B. furtiva, B. gammation, B. verecundia, B. dentata, B. cenomanica, B. ethmoquadrata, B. signata, B. galloisii, B. matalosa, B. viriosa, B. sp.,

Distinguishing features: central structure imperforate plate; rim broad


Taxonomy:

Citation: Broinsonia enormis (Shumenko, 1968) Manivit, 1971
Rank: Species
Basionym: Arkhangelskiella enormis Shumenko, 1968
Variants: Aspidolithus latus Noel, 1969 = Broinsonia lata (Noel, 1969) Noel 1970 - wider central area
Synonyms:

Farinacci & Howe catalog pages: Arkhangelskiella enormis * , Broinsonia bevieri * , Aspidolithus angustus * , Aspidolithus latus * ,

Distinguishing features: central structure imperforate plate; rim broad


Morphology remarks: The absence of pores in the plate may be diagenetic,and so spearation from B. furtiva is tenuous,  as discussed by Thierstein (1974).

Evolution & Phylogeny: Grades into B. parca

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Burnett 1998
First occurrence (base): within Albian Stage (100.50-112.95Ma, base in Albian stage). Data source: Burnett 1998

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: Broinsonia enormis, synonyms included - Arkhangelskiella enormis; Aspidolithus enormis; Broinsonia enormis; Broinsonia lata; space-time plot :: Samples map :: Parent: Broinsonia

    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

    Manivit, H. (1971). Nannofossiles calcaires du Crétacé francais (Aptien-Maestrichtien). Essai de Biozonation appuyée sur les stratotypes. PhD thesis, Université de Paris. -. gs

    Noël, D. (1969). Arkhangelskiella (coccolithes Crétacés) et formes affines du Bassin de Paris. Revue de Micropaléontologie. 11: 191-204. gs

    Noël, D. (1970). Coccolithes Crétacés: La Craie Campanienne du Bassin de Paris. Éditions du Centre National de la Recherche Scientifique, Paris. -. gs

    Perch-Nielsen, K. (1984). Validation of new combinations. INA Newsletter. 6(1): 42-46. gs

    Shumenko, S. I. (1968). Coccolithophorids as revealed by electron microscope. Paleontological Journal. 4: 464-470. gs

    Verbeek, J. W. (1977). Calcareous nannoplankton biostratigraphy of Middle and Upper Cretaceous deposits in Tunisia, southern Spain and France. Utrecht Micropaleontological Bulletin. 16: 1-157. gs


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    Broinsonia enormis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-7-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10121 Go to Archive.is to create a permanent copy of this page - citation notes



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