• Permian of Australia (10 collections), Bolivia (4), Cambodia (2), Canada (1: British Columbia), China (7), Indonesia (4), Iran (9), Italy (1), Japan (7), New Zealand (1), Pakistan (1), Svalbard and Jan Mayen (1), Tajikistan (1), Thailand (11), Timor-Leste (1), United States (7: Alaska, Nevada, Texas)

• Carboniferous to Permian of Svalbard and Jan Mayen (1)

• Carboniferous of Argentina (1), Australia (9), Canada (6: Alberta, Nova Scotia, Nunavut), Egypt (1), Germany (2), Ireland (2), Japan (4), Kazakhstan (1), the Russian Federation (2), Spain (1), Svalbard and Jan Mayen (1), Ukraine (2), the United Kingdom (5), United States (110: Alaska, California, Colorado, Idaho, Indiana, Kentucky, Montana, Nevada, Oklahoma, Tennessee, Utah, Virginia)

• Givetian of China (1)

• Couvinien of Australia (1)

• Devonian of Afghanistan (13), Algeria (1), Australia (34), Austria (3), Belgium (6), Canada (8: Alberta, Manitoba, Northwest Territories, Ontario, Yukon), China (8), Czechia (6), France (13), Germany (40), Japan (5), Luxembourg (2), Morocco (12), Poland (7), the Russian Federation (2), Spain (7), Tajikistan (1), Türkiye (1), the United Kingdom (3), United States (221: Alaska, Arizona, California, Indiana, Kentucky, Michigan, Nevada, New York, Ohio, Pennsylvania, Tennessee), Vietnam (3), Western Sahara (1)

• Jaani of Estonia (1)

• Silurian of Australia (3), Canada (14: British Columbia, New Brunswick, Northwest Territories, Nunavut, Quebec), China (5), Czechia (2), Estonia (17), Greenland (1), Japan (1), Norway (1), Poland (1), the Russian Federation (5), Sweden (13), the United Kingdom (1), United States (19: Alaska, Illinois, Indiana, Iowa, Kentucky, New York, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia)

• Ordovician of Australia (20), Canada (2: Newfoundland and Labrador, Ontario), China (7), Ireland (1), Kazakhstan (3), Norway (1), the Russian Federation (17), United States (2: Tennessee)

Total: 752 collections including 924 occurrences