Paradeshayesites
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| Genus: | Paradeshayesites Kemper, 1967
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Paradeshayesites is an extinct genus of cephalopod belonging to the Ammonite[1] subclass.
Biostratigraphic significance[edit]
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[edit]
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