Source : Webster's Revised Unabridged Dictionary (1913)

Inoceramus \In`o*cer"a*mus\, n. [NL., fr. Gr. ?, ?, a muscle + ?
   an earthen vessel.] (Paleon.)
   An extinct genus of large, fossil, bivalve shells,allied to
   the mussels. The genus is characteristic of the Cretaceous
   period.