Cardita Bilineata

Cardita bilineata Conroad Proc. Ac. Nat. Sc. vol 3 p 297

Subrhomboidal, very inequilaterally with about twenty-four wide, flattened radii, with very narrow interstices, a carina in the middle of each rib, with an impressed line on each side of its ribs crenulated anteriorly; carina somewhat tuberculated on the posterior side of the shell. L. 0.75 H 0.6

Eocene Tertiary
St. Mathews Parish S. Car.