• Permian of Japan (1 collection)

• Carboniferous to Permian of Japan (1)

• Carboniferous of Kazakhstan (1)

• Devonian of Germany (1), Morocco (17), United States (7: New York, Ohio, Pennsylvania)

• Silurian of Canada (2: Northwest Territories, Quebec), China (7), the Czech Republic (3), Italy (13), Japan (1), Morocco (1), the Russian Federation (8), Tajikistan (2), the United Kingdom (2), United States (8: New York, Wisconsin)

• Chazyan of United States (1: New York)

• Langevoja of Sweden (1)

• Dawan of China (2)

• Arenig of China (1)

• Ordovician of Australia (4), Canada (13: Ontario, Quebec), China (1), Estonia (5), France (3), Iran (1), Ireland (4), Morocco (3), North Korea (1), Norway (10), the Russian Federation (1), Sweden (14), the United Kingdom (18), United States (35: Alabama, Illinois, Iowa, Wisconsin, Kentucky, Minnesota, New Mexico, New York)

Total: 193 collections including 243 occurrences