• Permian of Afghanistan (2 collections), Armenia (6), Azerbaijan (13), Bolivia (3), Cambodia (1), Canada (1: Nunavut), China (71), Indonesia (1), Iran (28), Iraq (2), Japan (2), Malaysia (2), Pakistan (7), Slovenia (1), Tajikistan (1), United States (1: California)

• Carboniferous of Algeria (2), Australia (7), Canada (1: Yukon), China (2), the Czech Republic (2), Egypt (1), Ireland (4), Mexico (2), Morocco (6), the Netherlands (3), Poland (1), Turkey (1), Ukraine (2), the United Kingdom (53), United States (31: Alaska, Arizona, Arkansas, California, Georgia, Idaho, Indiana, Kansas, Kentucky, Montana, Nevada, Oklahoma, Tennessee, Utah)

• Devonian to Carboniferous of the United Kingdom (1)

• Devonian of Algeria (1), Australia (19), Bolivia (4), Brazil (1), Canada (3: Ontario), China (1), Colombia (3), the Czech Republic (3), France (5), Germany (21), Luxembourg (2), Morocco (5), New Zealand (4), the Russian Federation (1), South Africa (5), Spain (4), Tajikistan (1), Thailand (1), Turkey (1), the United Kingdom (1), United States (62: Indiana, Kentucky, Michigan, Missouri, New York, Ohio, Pennsylvania, Tennessee), Venezuela (4)

• Silurian to Devonian of Argentina (1)

• Silurian of Argentina (4), Australia (5), Bolivia (1), Tajikistan (1), United States (7: California, Kentucky, Wisconsin)

• Ordovician to Silurian of Canada (1: Northwest Territories)

Total: 433 collections including 510 occurrences