• Silurian of United States (1: Alaska collection)

• Dobrotivian of Czechia (1)

• Whiterockian of Canada (3: Newfoundland and Labrador)

• Arenig of China (1)

• Ningkuo of China (2)

• Ordovician of Argentina (3), Bolivia (1), Canada (5: British Columbia, New Brunswick, Quebec, Québec, Yukon), China (15), Lithuania (3), New Zealand (12), Norway (1), the Russian Federation (3), the United Kingdom (2), United States (23: Alaska, Idaho, Nevada, New York, Oklahoma), Venezuela (1)

Total: 77 collections including 78 occurrences