• Permian of Indonesia (1 collection), Italy (1), Madagascar (1)

• Carboniferous of Canada (2: Nunavut)

• Givetian of China (1)

• Couvinien of Australia (1)

• Devonian of Afghanistan (1), Australia (10), Austria (1), Canada (26: Alberta, British Colombia-Alberta, British Columbia, British Columbia-Alberta, Manitoba, Northwest Territories, Ontario), China (7), the Czech Republic (4), France (1), Germany (15), Iran (1), Kazakhstan (1), Morocco (1), Myanmar (2), Spain (4), Tajikistan (2), Thailand (1), the United Kingdom (4), United States (28: Alaska, California, Nevada, New York, Pennsylvania), Vietnam (1)

• Silurian of Canada (9: British Columbia, Manitoba, Quebec), India (1), Norway (4), Sweden (3), United States (24: Alaska, California, Indiana, Iowa, Maryland, New York)

• Ordovician of China (1)

Total: 159 collections including 197 occurrences