• Permian of Afghanistan (7 collections), Australia (171), Brazil (1), Canada (22: British Columbia, Nunavut, Yukon), China (28), Greece (1), India (13), Indonesia (3), Laos (1), Mongolia (9), Nepal (21), New Zealand (3), Oman (30), Pakistan (2), the Russian Federation (96), Slovenia (1), Svalbard and Jan Mayen (6), Tajikistan (4), United States (2: Alaska), Vietnam (1)

• Namurian of Australia (1)

• Carboniferous of Afghanistan (3), Argentina (13), Australia (23), Canada (30: Alberta, Northwest Territories, Yukon), Chile (2), China (5), Egypt (1), France (1), India (15), Iran (1), Ireland (1), Libya (8), Mexico (2), Nepal (3), the Russian Federation (3), the United Kingdom (17), United States (101: Alaska, California, Idaho, Illinois, Indiana, Iowa, Iowa/Illinois, Kentucky, Missouri, Montana, Nevada, New Mexico, Oklahoma, Utah, Virginia, Washington, Oregon, Idaho, Montana, Nevada, Utah, California)

• Devonian of Canada (2: Alberta), China (3), France (1), United States (51: Missouri, Montana, Ohio)

• Silurian of Ukraine (1)

Total: 710 collections including 818 occurrences