Trimeroceratidae

Trimeroceratidae is a family of molluscs in the order Oncocerida. These molluscs were fast-moving nektobenthic carnivores. They lived in the Silurian period.

Distribution
Species have been found in Silurian-era strata of Canada (Québec), China, Czechia, Italy, Russia, Sweden, and the United States (Indiana, Wisconsin).

Genus

 * Clathroceras
 * Eotrimeroceras
 * Inversoceras
 * Jeppssonoceras
 * Patagiumoceras
 * Pentameroceras
 * Plemeroceras
 * Simonssoceras
 * Stenogomphoceras
 * Trimeroceras