Arcinella cornuta Bi-valve
Caloosahatchee Beds, Glades County, Florida
Pleistocene Period (2,588,000 to 11,700 years ago)
Arcinella cornuta, or the spiny jewel box clam, is a species of bivalve mollusc in the family Chamidae. It can be found along the Atlantic coast of North America, ranging from North Carolina to Florida and Texas.