• Silurian of Algeria (4 collections), Andorra (1), Australia (3), Canada (17: Cape Manning, Northwest Territories, Nunavut, Yukon), China (31), Czechia (10), Denmark (11), France (13), Greenland (1), Guinea (1), Lithuania (7), Malaysia (2), Morocco (7), Paraguay (1), Poland (1), the Russian Federation (11), Saudi Arabia (1), Serbia (10), Sweden (2), the United Kingdom (21), United States (29: Alaska, California, Idaho, Iowa, Maine, New York), Uzbekistan (3), Western Sahara (2)

• Uhaku of Lithuania (1), Sweden (3)

• Dobrotivian of Portugal (2), Spain (2)

• Whiterockian of Canada (2: Newfoundland and Labrador)

• Arenig of China (20), Norway (2)

• Ningkuo of China (10)

• Dawan of China (2)

• Ordovician to Silurian of Canada (1: Québec), the Russian Federation (1), United States (1: Alaska)

• Ordovician of Argentina (10), Australia (5), Canada (20: Northwest Territories, Nunavut, Québec, Yukon), China (64), Czechia (7), Estonia (3), Kazakhstan (1), Latvia (1), Lithuania (2), Malaysia (2), New Zealand (3), Norway (5), Peru (1), the Russian Federation (15), Spain (1), Sweden (4), Türkiye (1), the United Kingdom (6), United States (38: Alaska, Idaho, Nevada, New York, Tennessee), Venezuela (1)

Total: 426 collections including 586 occurrences