• Permian of Afghanistan (3 collections), Armenia (9), Australia (40), Austria (2), Azerbaijan (18), Bolivia (26), Cambodia (2), Canada (13: British Columbia, Nunavut, Yukon), China (272), Croatia (2), East Timor (1), Greece (1), India (2), Indonesia (3), Iran (70), Italy (9), Japan (16), Laos (1), Malaysia (10), Mongolia (3), Myanmar (4), Nepal (11), New Zealand (2), Oman (6), Pakistan (72), Peru (4), the Russian Federation (43), Slovenia (2), Svalbard and Jan Mayen (2), Tajikistan (2), Thailand (24), Tunisia (26), Turkey (17), Ukraine (6), United States (308: Alaska, Arizona, California, New Mexico, Oregon, Texas, Utah), Venezuela (3)

• Namurian of Argentina (1), Australia (2)

• Carboniferous to Permian of China (1)

• Carboniferous of Australia (54), Bolivia (4), Brazil (1), Canada (26: Alberta, Northwest Territories, Nunavut, Yukon), China (8), Ireland (3), Libya (2), Malaysia (1), Mexico (2), Peru (1), the Russian Federation (1), South Korea (1), Spain (1), the United Kingdom (22), United States (289: Alabama, Alaska, Arkansas, California, Idaho, Illinois, Indiana, Iowa, Iowa/Illinois, Kansas, Kentucky, Missouri, Montana, Nevada, New Mexico, Oklahoma, Pennsylvania, Texas, Utah, Virginia, Washington, Oregon, Idaho, Montana, Nevada, Utah, California, Wyoming)

• Givetian of United States (1: Missouri)

• Devonian of Afghanistan (1), Belgium (1), Canada (10: Alberta, Northwest Territories, Ontario), China (3), Colombia (20), Germany (7), the Russian Federation (2), the United Kingdom (2), United States (176: Arizona, Indiana, Iowa, Maryland, Michigan, Nevada, New Mexico, New York, Ohio, Pennsylvania, Wisconsin), Venezuela (2)

• Silurian to Devonian of Pakistan (1)

Total: 1681 collections including 1985 occurrences