• Carboniferous of Australia (3 collections), Canada (1: Alberta), United States (5: Alaska, Indiana, Montana)

• Devonian of Afghanistan (1), Algeria (2), Australia (6), China (1), the Czech Republic (2), Germany (1), Kazakhstan (1), Poland (1), the Russian Federation (5), Tajikistan (1), United States (16: Alaska, Indiana, Missouri, New York, Pennsylvania, Tennessee, West Virginia, West Virginia, Maryland, Pennsylvania)

• Niagaran of Canada (2: Québec)

• Silurian to Devonian of Canada (2: Nova Scotia)

• Silurian of Australia (2), Belarus (2), Canada (18: Northwest Territories, Nova Scotia, Nunavut, Ontario, Quebec, Québec, Yukon, Yukon Territory), China (1), Estonia (14), Latvia (3), Lithuania (16), Mexico (12), Norway (3), Poland (1), the Russian Federation (5), Spain (1), Sweden (20), Tajikistan (1), Ukraine (9), the United Kingdom (7), United States (25: Alaska, Indiana, Iowa, Maine, Maryland, Nevada, New York, Oklahoma, West Virginia), Venezuela (1)

• Ordovician of United States (1: Illinois)

Total: 192 collections including 212 occurrences