Mercenaria langdoni 2 7/8” or 73.30mm."Chipola Ten Mile Creek Miocene"Lot#17878

Mercenaria langdoni 2 7/8” or 73.30mm. Dall, 1900-Extinct
Collected in the Lower Beds of the Chipola Formation in sandy mud by pick- axe and splashing at Alum Bluff. Alum Bluff Group, Chipola Formation, Apalachicola River, Liberty County, Bristol. Florida. Burdigalian Miocene 15.97-20.44 M.Y.A. Collected and identified by: Melanie Briskin.