Description: One preserved mussel specimen including the right valve only. The specimen exhibits a quadrate shape; thick shell; single looped beak sculpturing; white internal coloring; external sculpturing in the form of ridges. Collected in the Colorado basin. The specimen measures between 60 - 100 mm in length and was assessed to be subfossil when collected.
Date: June 15, 1979
Creator: Britton, Joseph; Brush, Sam & La Grove, M.
Partner: Elm Fork Natural Heritage Museum