Litoceras is a trocholitid (Tarphycerida) genus that has been found in the Lower and Middle Ordovician of Newfoundland.

Whorls in Litoceras have a broadly[clarification needed] rounded cross section with its width greater than its height.

Litoceras somewhat resembles the tarphyceratid Pionoceras from the same time, except for the siphuncle[clarification needed] being dorsal and in the center.

Species within the genera Litoceras include:[1]