411 REFERENCE · Wiktionary
Ostracea
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Translingual
Etymology
From mul Ostrea -acea.
Proper noun
mul obsolete order class Bivalvia a polyphyletic taxon comprising both the true oysters (now in the order Ostreoida) as well as similarly shaped bivalves, like the saddle oysters