| Arkelloceras Temporal range: MJurassic |
|
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Ammonoidea |
| Order: | Ammonitida |
| Suborder: | Ammonitina |
| Superfamily: | Stephanocerataceae |
| Family: | Otoitidae |
| Genus: | Arkelloceras |
Arkelloceras is an early Middle Jurassic (Bajocian stage) Stephanoceratacean (Ammonitina) genus from arctic Canada, Alaska, and Siberia belonging to the family Otoitidae (Imlay 1984, Westermann 1965)
Arkelloceras seems to be a direct descendant of Abbasites and is thought to have given rise to Ermoceras and possibly to Thamboceras. (Westermann 1965)