• Jaani of Estonia (6 collections), Lithuania (3)

• Silurian of Belarus (1), Canada (30: Northwest Territories, Nunavut, Quebec, Québec), China (1), the Czech Republic (7), Estonia (15), Greenland (1), Lithuania (7), Norway (1), Sweden (8), Ukraine (3), the United Kingdom (45), United States (21: Alabama, Arkansas, Indiana, Iowa, Missouri, New York, Oklahoma, Tennessee, Wisconsin)

• Dobrotivian of France (2), Spain (1)

• Letna of the Czech Republic (1)

• Whiterockian of United States (7: Arkansas, Maryland, Nevada, Pennsylvannia, Virginia)

• Chazyan of Canada (5: Newfoundland and Labrador, Northwest Territories, Quebec), United States (47: Alabama, New York, Tennessee, Vermont, Virginia)

• Ordovician to Silurian of Canada (6: Québec)

• Ordovician of Argentina (4), Australia (3), Belgium (16), Canada (21: British Columbia, Northwest Territories, Ontario, Quebec, Québec), China (43), the Czech Republic (8), Estonia (30), France (3), Ireland (6), Kazakhstan (22), Latvia (33), Lithuania (4), Mongolia (1), Morocco (1), Myanmar (1), New Zealand (1), Norway (27), Peru (2), Portugal (5), the Russian Federation (28), Spain (7), Sweden (21), Thailand (1), the United Kingdom (124), United States (57: Georgia, Illinois, Illinois, Iowa, Michigan, Minnesota, Missouri, Nevada, New York, Oklahoma, Pennsylvania, Tennessee, Virginia), Venezuela (1)

Total: 688 collections including 789 occurrences