Dactylioceras
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Dactylioceras was a widespread genus of ammonites from the Lower Jurassic period, approximately 180 million years ago. Wikipedia
Class: Cephalopoda
Genus: †Dactylioceras; Hyatt, 1867
Domain: Eukaryota
Family: †Dactylioceratidae
Kingdom: Animalia
Order: †Ammonitida
Phylum: Mollusca