• Triassic of Iran (1 collection)

• Permian of Australia (29), Austria (1), Canada (1: British Columbia), China (102), Greece (8), Guatemala (6), Hungary (2), Iran (14), Israel (3), Italy (4), Japan (1), Lithuania (3), Oman (1), the Russian Federation (2), Svalbard and Jan Mayen (2), Thailand (9), United States (6: Kansas, Texas), Venezuela (1)

• Carboniferous of United States (16: Arkansas, California, Colorado, Indiana, Kansas, Missouri, Oklahoma, Texas)

• Devonian of China (2), Czechia (1), France (2), Germany (1), Morocco (2), Poland (1), the Russian Federation (24), United States (11: Michigan, Nevada, New York, Ohio, Pennsylvania)

• Silurian of Canada (1: Northwest Territories), Italy (1), Ukraine (1), United States (10: Maryland, West Virginia)

• Uhaku of the Russian Federation (6), Sweden (1)

• Whiterockian of Canada (1: Northwest Territories), United States (14: Nevada, Oklahoma, Utah)

• Chazyan of Canada (6: Northwest Territories)

• Ordovician of Argentina (1), Canada (24: Northwest Territories, Nunavut, Ontario, Quebec), China (8), Czechia (1), Kazakhstan (1), Norway (6), the Russian Federation (42), Spain (2), Sweden (7), the United Kingdom (1), United States (38: Alaska, Iowa, Kentucky, Minnesota, Nevada, New York, Ohio, Oklahoma, Utah)

Total: 428 collections including 634 occurrences