Cardiomopha de Koninch vetusta, Hall, Pal. of N.Y. Vol. 1p.154 pl. 34 fig. 8
Lubrhomboidae, gibbous, abruptly rounded anterioly, sloping abruptly, from the posterior cardinal extremity; umbones much elevated, nearly over the anterior extremity; surface marked by strong concentric ridge, with small depressions of equal width between.
L10 H 11.6