Broinsonia gammation


Classification: Mesozoic -> Arkhangelskiales -> Arkhangelskiellaceae -> Broinsonia -> Broinsonia gammation
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: small (<5µm) species with perforate plate surrounding central cross


Taxonomy:

Citation: Broinsonia gammation Hill, 1976
Rank: Species

Farinacci & Howe catalog pages: Broinsonia gammation *

Distinguishing features: small (<5µm) species with perforate plate surrounding central cross

Geological Range:
Last occurrence (top): within Cenomanian Stage (93.90-100.50Ma, top in Cenomanian stage). Data source: Original description - so real range may be longer
First occurrence (base): within Middle Albian Substage (107.59-110.22Ma, base in Albian stage). Data source: Original description - so real range may be longer

Plot of occurrence data:

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

    References:

    Hill, M. E. (1976). Lower Cretaceous calcareous nannofossils from Texas and Oklahoma. Palaeontographica Abteilung B. 156: 103-179. gs


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    Broinsonia gammation compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-10-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10125 Go to Archive.is to create a permanent copy of this page - citation notes



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