Paradeshayesites
| Paradeshayesites Temporal range: Aptian | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | Ammonitida |
| Suborder: | Ancyloceratina |
| Family: | Deshayesitidae |
| Genus: | Paradeshayesites Kemper, 1967 |
Paradeshayesites is an extinct genus of cephalopod belonging to the Ammonite[1] subclass.
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
This article is issued from Wikipedia - version of the Wednesday, June 25, 2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.