• Permian of Italy (2 collections), Japan (2), Pakistan (2), the United Kingdom (1)

• Carboniferous of United States (2: Virginia)

• Devonian of Antarctica (5), Argentina (3), Australia (5), Bolivia (2), Brazil (23), Canada (3: New Brunswick, Northwest Territories, Quebec), China (11), Colombia (1), France (1), Germany (5), Ghana (1), Libya (3), Morocco (4), New Zealand (3), Poland (7), the Russian Federation (1), South Africa (14), Spain (3), Türkiye (1), United States (166: Alaska, Florida, Maryland, New York, Ohio, Pennsylvania), Uruguay (1)

• Silurian to Devonian of Argentina (1), Poland (2), Spain (1)

• Silurian of Argentina (6), Australia (2), Bolivia (1), Canada (14: Nova Scotia, Ontario, Québec), France (1), Lithuania (1), Paraguay (2), Poland (1), the Russian Federation (1), Sweden (2), the United Kingdom (21), United States (24: New York, Ohio)

• Arenig of France (2)

• Ordovician of Australia (2), Canada (6: Ontario, Quebec), China (3), Czechia (2), Morocco (1), Norway (3), South Korea (1), the United Kingdom (12), United States (44: Illinois, Iowa, Indiana, Iowa, Kentucky, Michigan, Minnesota, Minnesota, Illinois, Iowa, Minnesota, Iowa, Wisconsin, Illinois, New York, Ohio, Pennsylvania, Virginia)

Total: 428 collections including 496 occurrences