• Triassic of China (10 collections), Italy (1)

• Permian of Afghanistan (2), Armenia (15), Australia (3), Austria (2), Azerbaijan (25), Canada (1: Nunavut), China (56), Croatia (2), Greece (3), Hungary (3), India (3), Indonesia (1), Iran (59), Israel (16), Italy (10), Japan (55), Malaysia (2), the Russian Federation (4), Slovenia (1), Tajikistan (11), Thailand (5), Tunisia (2), Türkiye (18), Ukraine (4), the United Arab Emirates (1), United States (1: Texas), Venezuela (1)

• Carboniferous to Permian of Austria (2), the Russian Federation (1)

• Carboniferous of Canada (2: Nunavut), France (2), Kazakhstan (1), Mexico (1), Morocco (2), Norway (5), the Russian Federation (19), Spain (2), Thailand (6), Türkiye (4), the United Kingdom (1), United States (63: Colorado, Idaho, Iowa, Kansas, Missouri, Nebraska, Nevada, New Mexico, Oklahoma, Texas, Wyoming), Uzbekistan (1)

Total: 429 collections including 671 occurrences