from The Century Dictionary.
- noun A genus of prionodesmacean pelecypods having compressed, equivalve, concentrically plicated, thin-walled shells, with rounded outlines and short straight hinge-line. The species range from Silurian to Jurassic, and are especially abundant in Permian, Triassic, and Jurassic formations.
Sorry, no etymologies found.
Sorry, no example sentences found.
New comments are temporarily disabled while we update our database.