• Devonian of United States (2: Nevada collections)

• Whitwellian of Canada (3: Northwest Territories)

• Jaani of Estonia (3)

• Niagaran of United States (1: Indiana)

• Silurian of Australia (2), Canada (16: Manitoba, New Brunswick, Northwest Territories, Nunavut, Ontario, Québec), China (2), Czechia (2), Estonia (3), Lithuania (2), Mongolia (2), Norway (3), the Russian Federation (10), Sweden (23), Ukraine (1), the United Kingdom (50), United States (46: Arkansas, California, Illinois, Indiana, Iowa, Nevada, New York, Wisconsin), Venezuela (1)

• Ordovician of Argentina (2), China (7), Lithuania (2), the Russian Federation (4), the United Kingdom (6)

Total: 193 collections including 208 occurrences