• Devonian of Australia (27 collections), Austria (1), Belgium (6), Bolivia (2), Canada (18: Northwest Territories, Nunavut, Ontario, Quebec, Yukon), China (1), Colombia (1), Czechia (49), France (12), Germany (16), Italy (3), Morocco (33), Poland (2), the Russian Federation (2), Spain (8), United States (8: Alaska, Iowa, Nevada, Oklahoma), Uzbekistan (2), Vietnam (1)

• Whitwellian of Canada (5: Northwest Territories)

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

• Silurian of Algeria (1), Australia (6), Canada (23: Northwest Territories, Nunavut, Ontario, Quebec, Yukon Territory), China (2), Czechia (31), Estonia (2), Greenland (2), Ireland (1), Latvia (2), Morocco (3), Poland (1), Tajikistan (2), Ukraine (2), the United Kingdom (13), United States (19: Arkansas, Illinois, Indiana, Iowa, Maine, New York, Oklahoma, Tennessee, Wisconsin)

• Whiterockian of United States (3: New York)

• Arenig of France (1)

• Ordovician to Silurian of Canada (1: Québec)

• Ordovician of Belgium (2), Canada (10: Northwest Territories, Quebec), China (4), Estonia (1), Ireland (5), Norway (22), the Russian Federation (3), Spain (3), Sweden (4), the United Kingdom (21), United States (18: Illinois, Kentucky, Missouri, Nevada, Oklahoma, Virginia)

Total: 406 collections including 488 occurrences