• Permian of Australia (5 collections), Azerbaijan (1), China (6), East Timor (1), Indonesia (5), Italy (1), Myanmar (1), United States (4: Alaska, Texas), Vietnam (1)

• Carboniferous of Australia (2), Belgium (1), China (2), France (2), Ireland (7), Morocco (5), the Russian Federation (4), Spain (1), Turkey (1), Ukraine (2), the United Kingdom (21), United States (48: Alaska, Arkansas, California, Colorado, Georgia, Idaho, Indiana, Iowa, Kentucky, Montana, Tennessee, Utah, Wyoming)

• Givetian of Morocco (2)

• Devonian of Afghanistan (9), Australia (9), Austria (1), Belgium (1), Canada (23: Alberta, British Columbia, Manitoba, Northwest Territories, Ontario), China (7), the Czech Republic (3), Germany (9), Italy (1), Kazakhstan (2), Mongolia (1), Morocco (3), the Russian Federation (18), Spain (16), Tajikistan (6), Thailand (1), the United Kingdom (2), United States (118: Alaska, Indiana, Kentucky, Michigan, Nevada, New York, Ohio), Uzbekistan (1), Vietnam (5), Western Sahara (1)

• Silurian to Devonian of Pakistan (1), the Russian Federation (1)

• Silurian of Australia (9), Canada (30: Manitoba, New Brunswick, Northwest Territories, Ontario, Quebec), China (27), Estonia (3), Japan (1), Mongolia (4), the Russian Federation (8), Sweden (3), Tajikistan (1), Ukraine (1), United States (29: Alaska, California, Indiana, Iowa, Nevada, New York, Oklahoma, Pennsylvania, Virginia, Wisconsin), Uzbekistan (1)

• Whiterockian of United States (1: California)

• Ordovician to Silurian of Canada (2: Northwest Territories)

• Ordovician of Australia (10), Canada (40: Manitoba, Northwest Territories, Nunavut, Ontario, Quebec, Québec), China (16), Mongolia (6), Norway (3), the Russian Federation (6), United States (55: Alaska, California, Georgia, Kentucky, New Mexico, Ohio, Tennessee, Texas, Wyoming)

• Ibexian of United States (1: Nevada)

• Paleozoic of United States (1: Alaska)

Total: 620 collections including 798 occurrences