Holopea

Holopea is an extinct genus of fossil sea snails, Paleozoic gastropod mollusks in the family Holopeidae.
These molluscs were stationary epifaunal suspension feeders. They lived in the Paleozoic Era, Ordovician Period, upper Arenigian age to the Carboniferous period, lower Serpukhovian age Ma to 318.1.

Distribution

These fossil gastropods are found in: the Permian of China; the Devonian of Australia, Canada, United States; the Silurian of Australia, Canada, Russia, Sweden, United Kingdom, United States; the Ordovician of Canada, China, the Czech Republic, Estonia, Iran, New Zealand, Norway, Sweden, the United Kingdom, United States; Chazy of Canada; Arenig of Greenland.