| 词条 | Paradeshayesites |
| 释义 |
| name = Paradeshayesites | fossil_range = {{fossil_range|Aptian}} | regnum = Animalia | phylum = Mollusca | classis = Cephalopoda | ordo = Ammonitida | subordo = Ancyloceratina | familia = Deshayesitidae | genus = Paradeshayesites | genus_authority = Kemper, 1967 }} Paradeshayesites is an extinct genus of cephalopod belonging to the Ammonite[1] subclass. Biostratigraphic significanceThe 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. References1. ^The Origin and evolution of the family Deshayesitidae Stoyanow, 1949 {{webarchive|url=https://web.archive.org/web/20110531193627/http://www.geologie.ac.at/filestore/download/BR0046_022_A.pdf |date=2011-05-31 }} {{Taxonbar|from=Q16956548}}{{Ammonite-stub}} 3 : Cretaceous ammonites|Index fossils|Aptian life |
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