Calpionellites_darderi

<i>Calpionellites darderi</i>

Calpionellites darderi

Species of single-celled organism

Calpionellites darderi is an extinct planktonic eukaryote and an important index fossil for the Lower Cretaceous stratigraphy. The first appearance of C. darderi marks the beginning of the Valanginian. It also defines the base of the "Calpionellid Zone E".[1] The species was first described by Colom in 1934 and is part of the Calpionellites genus.[2]

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References

  1. [1]
    "GSSP Table - Mesozoic Era". Retrieved 21 February 2013.
  2. [2]
    Bolli, Hans M.; Saunders, John B.; Fancett, Katharina Perch-Nielsen, eds. (1989). Plankton stratigraphy (1st paperback ed.). Cambridge [Cambridgeshire]: Cambridge University Press. ISBN 9780521367196.


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