A very large gastropod mollusk from the Family Melonginidae. Plio-Pleistocene, between 1 to 3 million years ago. Lengths range from 5.5 to 13 cm. Quayhog bivalve mollusks. A variety of sizes with or without both valves.
Some specimens have barnacles attached and worm burrows in the shell.
Our choice for the price and quality you choose. Upper Pleistocene, about 15,000 years old. Shell is 3 x 2.7 cm. Matrix is 4.5 x 4.5 x 4 cm. Scallop bivalve shell in matrix with other shell fragments.