Box 26, Folder 2: Paleontology Notes 7: Acephala 2

Cardium Eversum, Conrad, Pr. Ac. Nat Sc. vol 3 p 291

Ovate, elevated, subequilateral; ventricose, thin, with numerous approximate, slender, rounded ribs distinctly crenulated anterior towards the margins; umbonial slope subangulated; posterior extremity subtruncated; direct; summit very prominent; ribs crenulated on the sides, in the middle of the valves, or finely aculeated. L. 0.9 H 1.2

Eocene Tertiary Vicksburg Miss

Cardium Globosum, Conrad, Pro. Ac. Nat. Sc. vol 3 p 291

Ovate, ventricose, with numerous flat ribs, slightly carinated on the margins and numerous approximate, prominent arched scales. H 1.25

Eocene Tertiary Vicksburg Miss

Cardium Gronlandicum, Chemm; Grewingk, Herb. p. 350 pl. 4 fig. 4

Testa tenui, laevi, sulcis linearibus radiatis, subdistantibus, [margins] magis minusve, imprimis media in valva obsoletis posticis solis distinctis, cardinis dentibus omnibus magis minusve obsoletis.

L 1.8 H 1.6 D 1.0

Tertiary N.W. Coast

Cardium Hillanum, Sowerby (Protocardia Hillana Beyrich)