• Devonian of Australia (25 collections), Austria (1), Belgium (6), Bolivia (2), Canada (15: Northwest Territories, Nunavut, Quebec, Yukon), China (1), Colombia (1), Czechia (43), France (11), Germany (17), Italy (3), Morocco (27), Poland (2), the Russian Federation (2), Spain (8), United States (6: Alaska, Iowa, Nevada, Oklahoma), Uzbekistan (2), Vietnam (1)

• Whitwellian of Canada (5: Northwest Territories)

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

• Silurian of Australia (6), Canada (15: Northwest Territories, Nunavut, Ontario, Quebec, Yukon Territory), China (2), Czechia (29), Estonia (1), Greenland (1), Latvia (2), Morocco (2), Poland (1), Tajikistan (2), the United Kingdom (3), United States (11: Illinois, Indiana, Iowa, Maine, New York, Tennessee, Wisconsin)

• Arenig of France (1)

• Ordovician to Silurian of Canada (1: Québec)

• Ordovician of Belgium (2), Canada (8: Northwest Territories, Quebec), China (4), the Russian Federation (1), Sweden (4), the United Kingdom (11), United States (15: Illinois, Kentucky, Missouri, Nevada, Oklahoma, Virginia)

Total: 301 collections including 346 occurrences