Cetonoceras is genus of ammonite that lived during the upper Pliensbachian stage of early Jurassic.

Fossils of this genus were found in Italy, France, Spain, Portugal, Hungary and Austria.

[1][2][3] First whorls of shell are depressed, but then they became rounded and more compressed.

Primary ribs are strong and they are usually bifurcating.

Similar genus is Reynesocoeloceras, but that one is lacking ribs bifurcations.