Oxynoticeras is a genus of ammonite that lived in the Late Jurassic. This ammonite is easily identifiable by its distinctive shape, relatively small size, typically a few centimeters in diameter. Its shell is wide and flatly coiled, with numerous fine ribs. Oxynoticeras is thought to have lived mainly near the seabed in shallow seas, likely preying on small organisms on the seafloor.
Fossils of this genus are mainly found in Europe, but have also been reported from other regions.

This specimen also preserves numerous Crucilobiceras.
The back also appears to have bivalve and brachiopod shells embedded.