Dactylioceras Temporal range:
| |
---|---|
Dactylioceras (Dactylioceras) athleticum | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Ammonitida |
Family: | †Dactylioceratidae |
Subfamily: | †Dactylioceratinae |
Genus: | †Dactylioceras Hyatt, 1867 |
Dactylioceras was a widespread genus of ammonites from the Lower Jurassic period,[1] approximately 180 million years ago (mya).[2] and Like many other ammonites, the genus Dactylioceras is extremely important in biostratigraphy, being a key index fossil for identifying their region of the Jurassic. It had a nearly cosmopolitan distribution during the time it existed.