Echioceratidae
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Translingual
[edit]
Etymology
[edit]Echioceras + -idae
Proper noun
[edit]†Echioceratidae
- A taxonomic family within the order Ammonitida – ammonites with serpenticone shells with keel, that lived in the Sinemurian stage of the Jurassic.
References
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Echioceratidae on Wikipedia.Wikipedia 
Psiloceratoidea on Wikispecies.Wikispecies 
Category:Psiloceratoidea on Wikimedia Commons.Wikimedia Commons - Echioceratidae at Paleobiology Database
