Unionid
"Unionid" in a Sentence (3 examples)
Mr. C[harles] T[orrey] Simpson states that no Mutelid, known to be such, has the Unionid type of hinge.
The present study began with the discovery of metacercariae in the edge of the mantle of unionid bivalves collected from the Tippecanoe River, Indiana.
Articulated unionid shells, many in life position in channel lag (cl) below a thin clay bed (c), in turn overlain by a shelving sandstone (SS) with Lockeia in its sole face and with escape structures.