• Silurian of Canada (9: Northwest Territories, Nunavut, Quebec, Québec collections), China (1), Estonia (5), the Russian Federation (1), Sweden (5), United States (1: California)

• Whiterockian of United States (2: California)

• Ordovician to Silurian of United States (1: California)

• Ordovician of Australia (14), Canada (79: British Columbia, Manitoba, Northwest Territories, Nunavut, Ontario, Quebec, Québec), China (11), the Czech Republic (2), Estonia (5), Latvia (1), Lithuania (1), Norway (3), the Russian Federation (1), the United Kingdom (10), United States (972: Alabama, California, Colorado, Georgia, Idaho, Illinois, Iowa, Indiana, Iowa, Kentucky, Maryland, Michigan, Minnesota, Missouri, Nevada, New Mexico, New York, Ohio, Pennsylvania, Pennsylvania and Virginia, Tennessee, Texas, Virginia, Wyoming)

Total: 1124 collections including 1204 occurrences