Kingdom Animalia Class Cephalopoda Rank Genus | Phylum Mollusca Subclass Ammonoidea | |
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Ukepedia apoderoceras
Apoderoceras is an extinct genus of cephalopod belonging to the Ammonite subclass.
Contents
Biostratigraphic significance
The International Commission on Stratigraphy (ICS) has assigned the First Appearance Datum of genus Apoderocerasas and of Bifericeras donovani the defining biological marker for the start of the Pliensbachian Stage of the Jurassic, 190.8 ± 1.0 million years ago.
Distribution
Jurassic of Argentina, Hungary, Italy, Portugal, the United Kingdom
References
Apoderoceras Wikipedia(Text) CC BY-SA