• Triassic of China (85 collections), Oman (4), Pakistan (2), the Russian Federation (2), United States (2: Montana)

• Permian to Triassic of China (2)

• Permian of Antarctica (1), Australia (14), Austria (1), Bolivia (29), Brazil (3), Canada (15: British Columbia, Northwest Territories, Nunavut, Yukon), China (266), Germany (1), Greece (4), Hong Kong (4), Hungary (7), Indonesia (1), Iran (7), Italy (10), Japan (5), Laos (1), Lithuania (8), Malaysia (2), Mexico (1), Mongolia (1), New Caledonia (2), New Zealand (16), Oman (1), Pakistan (6), Peru (7), the Russian Federation (16), Slovenia (1), Tajikistan (3), Thailand (26), Tunisia (3), Türkiye (1), Ukraine (2), the United Kingdom (6), United States (168: Alaska, California, Idaho, Kansas, Nevada, New Mexico, Oregon, Texas, Utah, Wyoming)

• Namurian of Thailand (1)

• Carboniferous to Permian of United States (4: California, Texas)

• Carboniferous of Antarctica (1), Argentina (3), Australia (6), Belgium (2), Bolivia (9), Canada (7: Alberta, Northwest Territories, Nunavut, Yukon), China (5), Czechia (1), Germany (4), India (1), Ireland (4), Mexico (2), Peru (2), the United Kingdom (69), United States (499: Alaska, Arizona, Arkansas, California, Colorado, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maryland, Missouri, Montana, Nebraska, Nevada, New Mexico, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas, Utah, Washington, Oregon, Idaho, Montana, Nevada, Utah, California)

• Givetian of China (1), Poland (1), the Russian Federation (1)

• Devonian to Carboniferous of the United Kingdom (4)

• Devonian of Afghanistan (5), Argentina (4), Australia (12), Belgium (3), Bolivia (27), Brazil (7), Canada (93: Alberta, Alberta, Saskatchewan, Mackenzie, British Columbia, Manitoba, Northwest Territories, Nunavut, Ontario, Quebec, Yukon), China (28), Colombia (12), Czechia (14), France (2), Germany (22), Italy (1), Libya (3), Morocco (1), Myanmar (2), Poland (20), the Russian Federation (19), South Africa (8), Spain (2), Tajikistan (1), Ukraine (4), the United Kingdom (7), United States (542: Alaska, Arizona, California, Idaho, Iowa, Kentucky, Maryland, Maryland, West Virginia, Virginia, Michigan, Missouri, Montana, Nevada, New Mexico, New York, Ohio, Pennsylvania, Virginia, West Virginia), Uzbekistan (1), Venezuela (1), Vietnam (3)

• Silurian to Devonian of Pakistan (1)

• Silurian of Canada (9: Northwest Territories, Nunavut, Yukon, Yukon Territory), Czechia (8), Iran (1), United States (2: California, Oklahoma)

Total: 2228 collections including 2518 occurrences