Mcqueenoceras is an extinct genus of early endocerid, a nautiloid from the Floian epoch of the late early Ordovician period.

Mcqueenoceras, like Clitendoceras, has ventral siphuncle but the endocones are thicker on the ventral side and thinner on the dorsal.

Also the sutures in Mcqueenoceras retreat rearward, forming lobes as they cross the venter.

The type species is Mcqueenoceras jeffersonense, named by E.O.

[1] In 1956, Rousseau H. Flower named two other species, M. cariniferum and M. ventrale, both known from Maryland.