Schmidtella
Unsulcated shells, 2 mm or less in length, short subovate, broadly umbonate, most convex in the dorsal region and pinched in ventral slope; right valve overlapping the left along the ventral margin (Bassler and Kellett, 1934).
Species
Schmidtella brevis Ulrich, 1894
Occurrence: Clays Ferry
Reference: Warshauer and Berdan, 1982; Bassler and Kellett, 1934