Transicoeloceras, which is sometimes considered to be a synonym of Catacoeloceras[2] is genus of ammonite that lived during Toarcian stage (Bifrons to lower Gradatus ammonite Zones) of early Jurassic.

Their fossils were found in Hungary, Italy, France, southern Spain and South America.

[1] Ammonites belonging to this genus have small shells.

Rounded subtrapezoid whorl section has maximum width at the shoulder.

Umbilicus is deep and venter is broad and convex.