• Permian of Australia (1 collection), Canada (1: Nunavut), China (6), Greece (3), India (1), Iran (2), Japan (1), Malaysia (1), Mexico (2), Nepal (1), New Zealand (1), Norway (3), the Russian Federation (1), Slovenia (1), Thailand (1), Tunisia (1), United States (22: Arizona, California, Idaho, Montana, Nevada, New Mexico, Texas, Utah, Wyoming), Venezuela (4)

• Carboniferous of Australia (2), Belgium (1), Canada (3: Alberta, Nunavut), Czechia (2), Egypt (1), France (1), Ireland (1), Mexico (1), Morocco (1), Spain (5), Ukraine (1), the United Kingdom (41), United States (49: Arizona, California, Colorado, Georgia, Idaho, Indiana, Kansas, Kentucky, Nevada, New Mexico, Oklahoma, Tennessee, Texas, Utah)

• Givetian of Morocco (1)

• Devonian of Australia (19), Austria (1), Belgium (17), Canada (17: British Columbia-Alberta, Manitoba, Northwest Territories, Nunavut, Yukon), China (16), Colombia (19), Czechia (16), France (4), Germany (50), Italy (2), Libya (1), Mongolia (7), Morocco (12), New Zealand (3), the Russian Federation (1), Spain (38), United States (84: Alaska, Arizona, California, Illinois, Indiana, Nevada, New Jersey, New York, Pennsylvania, Tennessee, West Virginia, Maryland, Pennsylvania), Venezuela (2)

• Silurian to Devonian of United States (1: Oklahoma)

• Silurian of Argentina (5), Australia (12), Canada (11: Nunavut, Ontario, Quebec), China (4), Czechia (6), Estonia (2), Greenland (1), Ireland (1), Lithuania (2), Mexico (4), Mongolia (3), Norway (27), the Russian Federation (14), Svalbard and Jan Mayen (1), Sweden (8), Ukraine (3), the United Kingdom (16), United States (93: Alaska, California, Illinois, Indiana, Iowa, Michigan, Nevada, New Hampshire, New York, Oklahoma, Pennsylvania, Tennessee, Wisconsin)

• Ordovician to Silurian of Norway (1)

• Ordovician of Australia (2), Canada (3: British Columbia, Northwest Territories and Yukon), China (2), Estonia (7), Mongolia (1), Norway (4), the Russian Federation (12), Sweden (1), the United Kingdom (5), United States (17: Alaska, California, Iowa, New Mexico, Ohio, Texas, Wyoming)

• Paleozoic of United States (2: Alaska)

Total: 743 collections including 792 occurrences