Paradeshayesites

Paradeshayesites is an extinct genus of cephalopod belonging to the Ammonite[1] subclass.

Paradeshayesites
Temporal range: Aptian
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Suborder:
Ancyloceratina
Family:
Deshayesitidae
Genus:
Paradeshayesites

Kemper, 1967

Biostratigraphic significance

The International Commission on Stratigraphy (ICS) has assigned the First Appearance Datum of Paradeshayesites oglanlensis as the defining biological marker for the start of the Aptian Stage of the Cretaceous, ~125.0 million years ago.

References
  1. The Origin and evolution of the family Deshayesitidae Stoyanow, 1949 Archived 2011-05-31 at the Wayback Machine


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