• Triassic of Australia (2 collections), Austria (6), Bosnia and Herzegovina (1), Canada (1: British Columbia), China (1), Hungary (3), Italy (12), Malaysia (1), Papua New Guinea (1), Serbia and Montenegro (1), Slovakia (2), Slovenia (2), Spain (2), Thailand (1), Tunisia (1), Turkey (4), United States (4: Alaska, Nevada, Oregon)

• Permian of Armenia (14), Australia (1), Azerbaijan (26), China (18), Greece (2), India (1), Indonesia (1), Iran (14), Italy (3), Japan (22), Malaysia (1), Mongolia (1), the Russian Federation (1), Slovenia (1), Tajikistan (6), Thailand (1), Turkey (5), Ukraine (1), United States (1: Texas)

• Carboniferous to Permian of Italy (6)

• Carboniferous to Devonian of Uzbekistan (1)

• Carboniferous of Algeria (1), Belgium (2), Canada (6: Alberta, Nunavut), China (3), Egypt (1), France (4), Greenland (1), Ireland (10), Mexico (1), Morocco (3), Norway (4), the Russian Federation (18), Spain (3), Thailand (6), Turkey (2), Ukraine (1), the United Kingdom (67), United States (132: Alabama, Alaska, California, Idaho, Indiana, Iowa, Kansas, Kentucky, Missouri, Nebraska, Nevada, New Mexico, Ohio, Oklahoma, Pennsylvania, Texas, Wyoming), Uzbekistan (1)

• Devonian of Belgium (1), China (2), Germany (1), Poland (2), the Russian Federation (1), Uzbekistan (1), Vietnam (2)

Total: 448 collections including 725 occurrences