''Ancolioceras'' is an extinct genus of cephalopod belonging to the
ammonite
Ammonoids are extinct, (typically) coiled-shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish (which comprise the clade Coleoidea) than they are to nautiluses (family N ...
subclass.
References
Jurassic ammonites of Europe
Hildoceratoidea
Ammonitida genera
{{Ammonite-stub