• Permian of Australia (28 collections), Canada (1: British Columbia)

• Carboniferous of United States (1: Missouri)

• Couvinien of Australia (1)

• Devonian of Morocco (1), Ukraine (1), United States (7: Michigan, Nevada, New York, Ohio, Pennsylvania)

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

• Silurian of Australia (1), Canada (2: Québec), the Czech Republic (1), Germany (3), Lithuania (1), Ukraine (1), United States (23: Georgia, Maryland, New York, Oklahoma, West Virginia)

• Dobrotivian of the Czech Republic (1), Portugal (4)

• Letna of the Czech Republic (1)

• Arenig of Bolivia (1)

• Ordovician of Argentina (1), Canada (14: Northwest Territories, Ontario, Quebec), China (3), the Czech Republic (5), Norway (1), the Russian Federation (1), Spain (1), Sweden (9), United States (18: Iowa, Minnesota, Ohio)

Total: 133 collections including 190 occurrences