Propeamussium is a genus of saltwater clams, marine bivalve mollusks in the order Ostreoida.

[1][2] Living representatives of the genus enjoy a global distribution.

The Global Biodiversity Information Facility lists 50 accepted species.

[3][4] Fossil species of these epifaunal carnivores lived from the Triassic period to the Pliocene age (235.0 to 3.6 Ma).

The majority of fossils of this genus are found throughout Europe and North America.