• Triassic of China (8 collections), Hungary (5), Pakistan (1), Romania (1), Turkey (5)

• Permian of Azerbaijan (4), Canada (1: British Columbia), China (190), Greece (6), Guatemala (6), Hungary (8), Iran (21), Italy (3), Japan (3), Lithuania (15), the Russian Federation (2), Thailand (10), Turkey (1), United States (1: Texas)

• Carboniferous of China (2), Italy (1), United States (10: Arkansas, Indiana, Kansas)

• Devonian of Belgium (1), France (2), Poland (13), the Russian Federation (19), Turkey (1), United States (6: Michigan, Ohio)

• Silurian of Estonia (3), Lithuania (2), the Russian Federation (2), Ukraine (3)

Total: 356 collections including 532 occurrences