• Permian of United States (1: Texas collection)

• Carboniferous of Belgium (1), Canada (1: Nunavut), China (1), Ireland (1), United States (22: Illinois, Indiana, Iowa, Kentucky, Missouri, Montana, Nevada, New Mexico, Tennessee)

• Givetian of France (10), the Russian Federation (1)

• Devonian of Afghanistan (1), Australia (8), Canada (39: Alberta, British Columbia, Manitoba, Northwest Territories, Nunavut, Quebec, Yukon), China (6), Colombia (17), the Czech Republic (6), France (1), Germany (2), Myanmar (2), New Zealand (1), Poland (2), Ukraine (2), United States (145: Alaska, Indiana, Maryland, Missouri, Nevada, New York, Oklahoma, West Virginia, Maryland, Pennsylvania)

• Whitwellian of Canada (3: Northwest Territories)

• Jaani of Estonia (2), Lithuania (9)

• Niagaran of Canada (1: Québec)

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

• Silurian of Argentina (1), Australia (5), Canada (20: New Brunswick, Northwest Territories, Nunavut, Ontario, Quebec, Québec, Yukon, Yukon Territory), China (19), the Czech Republic (7), Ireland (1), Lithuania (24), Mexico (7), Mongolia (1), Poland (1), Spain (3), Sweden (9), Ukraine (1), the United Kingdom (11), United States (59: Arkansas, California, Indiana, Iowa, Maine, Missouri, Nevada, New York, Oklahoma, Tennessee, Wisconsin), Venezuela (2)

Total: 459 collections including 472 occurrences