• Devonian of Canada (2: Ontario, Yukon collections), Italy (1), United States (6: Indiana, New York, Ohio, Oklahoma, Pennsylvania)

• Whitwellian of Canada (3: Northwest Territories)

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

• Silurian of Argentina (3), Canada (41: Anticosti, Manitoba, Northwest Territories, Ontario, Quebec, Québec, Yukon Territory), the Czech Republic (14), Estonia (1), Greenland (2), Japan (3), Norway (1), Sweden (4), the United Kingdom (9), United States (51: Alaska, Arkansas, California, Illinois, Indiana, Iowa, New York, Wisconsin)

• Dobrotivian of the Czech Republic (2), France (1), Portugal (1), Spain (6)

• Whiterockian of Canada (10: Newfoundland and Labrador, Northwest Territories, Quebec), United States (14: Nevada, New York, Oklahoma, Vermont)

• Chazyan of Canada (13: Northwest Territories), United States (17: New York)

• Volkhov of the Russian Federation (18)

• Klabava of the Czech Republic (2)

• Arenig of China (1)

• Ordovician to Silurian of Canada (5: Québec)

• Ordovician of Argentina (1), Australia (7), Belgium (2), Canada (14: Newfoundland, Newfoundland and Labrador, Northwest Territories, Ontario, Quebec, Québec), China (17), the Czech Republic (2), Estonia (1), Iran (2), Ireland (17), Italy (1), Kazakhstan (6), Latvia (3), Lithuania (1), Morocco (2), the Netherlands (2), Norway (17), the Russian Federation (9), Spain (9), Sweden (35), the United Kingdom (31), United States (36: California, Illinois, Illinois, Iowa, Iowa/Wisconsin, Kentucky, Maine, Michigan, Minnesota, Missouri, Nevada, New York, Ohio, Oklahoma, Tennessee, Virginia)

Total: 447 collections including 544 occurrences