p.3

Cardium Nicolletti, Conrad, Jour Ac. Nat Sc. vol 8 p 290-Proc. Ac. Nat. Sc. vol. 3 p 22 pl 1 fig 14

Cordate, ventricose, polished, with crowded, minute, impressed, radiating lines; beaks central; summits very prominent; posterior margin nearly direct, slightly emarginate; posterior slope with larger striae than the disk, and muricated with radiating rows of approximate, rather obtuse, slender & prominent tubercles. L. 2.5 H 2.5

Eocene Tertiary
Washita river Monroe Co. La.