The Collaborative International Dictionary
Inoceramus
Inoceramus \In`o*cer"a*mus\, n. [NL., fr. Gr. 'i`s, 'ino`s, 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.
Wikipedia
Inoceramus
Inoceramus (Greek: translation "strong pot") is an extinct genus of fossil marine pteriomorphian bivalves that superficially resembled the related winged pearly oysters of the extant genus Pteria.