Broinsonia dentata


Classification: Mesozoic -> Arkhangelskiales -> Arkhangelskiellaceae -> Broinsonia -> Broinsonia dentata
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: axial cross with lateral bars


Taxonomy:

Citation: Broinsonia dentata Bukry, 1969
Rank: Species
Variants: Broinsonia handfieldi Bukry, 1969 (longitudinal cross bars taper at the ends to give lozenge-shaped central structure)
Broinsonia orthocancellata Bukry, 1969 (lateral bars thicker)

Farinacci & Howe catalog pages: Broinsonia dentata * , Broinsonia handfieldii * , Broinsonia orthocancellata *

Distinguishing features: axial cross with lateral bars

Search data:
TagsLITHS: placolith, elliptical, CA: cross-axial, grill, V-UNITS: V-prominent, R-UNITS: R-prominent, DETAILS: rim-bicyclic,
MetricsLith size: 6->10µm;
Sources: original descriptions & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Campanian Stage (72.05-83.64Ma, top in Campanian stage). Data source: Burnett 1998
First occurrence (base): within Campanian Stage (72.05-83.64Ma, base in Campanian 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 dentata, synonyms included - Broinsonia dentata; Broinsonia handfieldii; Broinsonia orthocancellata;
  • 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 :: ::

    Roth, P. H. & Thierstein, H. R. (1972). Calcareous nannoplankton: Leg 14 of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 12: 546-559. gs :: view :: open

    Wise, S. W. (1983). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 71 in the Falkland Plateau region, Southwest Atlantic Ocean. Initial Reports of the Deep Sea Drilling Project. 71: 481-550. gs :: view :: open


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    Broinsonia dentata compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 29-5-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10120 Go to Archive.is to create a permanent copy of this page - citation notes



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