• Carboniferous of United States (6: Missouri, Oklahoma collections)

• Devonian of Canada (4: Ontario), the Czech Republic (1), France (1), Germany (1), Morocco (2), the Russian Federation (12), United States (23: Michigan, New York, Ohio, Pennsylvania, Virginia)

• Silurian to Devonian of United States (1: Oklahoma)

• Silurian of Australia (1), Canada (4: Quebec, Québec), the Czech Republic (1), Germany (1), the Russian Federation (3), United States (3: New York, Oklahoma)

• Uhaku of the Russian Federation (1), Sweden (3)

• Dobrotivian of Portugal (1)

• Whiterockian of United States (15: Nevada)

• Chazyan of Canada (10: Northwest Territories, Quebec), United States (31: New York)

• Ordovician of Argentina (1), Canada (36: Northwest Territories, Nunavut, Ontario, Quebec, Québec), China (5), Estonia (1), Latvia (5), Norway (10), the Russian Federation (32), Spain (1), Sweden (34), the United Kingdom (1), United States (54: Alaska, Indiana, Iowa, Kentucky, Minnesota, Nevada, Ohio, Oklahoma, Tennessee, Virginia, Wisconsin)

Total: 305 collections including 657 occurrences