• Cretaceous of China (1 collection), the Czech Republic (1), France (2), Hungary (1), Italy (1), the Marshall Islands (1), Oman (2), Saudi Arabia (1), Slovenia (2), Spain (1), Ukraine (2)

• Jurassic to Cretaceous of China (2), Japan (2)

• Jurassic of Bulgaria (1), China (2), France (1), Italy (5), Morocco (2), Portugal (3), Slovenia (2), Thailand (1)

• Triassic of Italy (1), New Zealand (1), Slovenia (8), United States (1: Alaska)

• Permian of China (4)

• Carboniferous of Ukraine (1)

• Givetian of Morocco (2)

• Devonian of Afghanistan (7), Australia (13), Austria (11), Belgium (10), Canada (41: Alberta, British Columbia, Manitoba, Northwest Territories, Nunavut, Ontario, Yukon), China (4), the Czech Republic (5), France (7), Germany (25), Iran (1), Mongolia (4), Morocco (12), Poland (2), the Russian Federation (5), Tajikistan (2), Thailand (5), the United Kingdom (2), United States (33: Alaska, Arizona, California, Iowa, Nevada, New Jersey, New York, Pennsylvania, West Virginia, Maryland, Pennsylvania, West Virginia, Maryland, and Pennyslvania)

• Niagaran of United States (1: Indiana)

• Silurian to Devonian of Pakistan (1), the Russian Federation (1), United States (1: Virginia)

• Silurian of Australia (6), Belarus (1), Canada (20: Northwest Territories, Nunavut, Ontario, Quebec), China (5), the Czech Republic (3), Estonia (2), Greenland (1), Lithuania (2), Mongolia (4), Norway (7), the Russian Federation (34), Svalbard and Jan Mayen (1), Sweden (27), Tajikistan (2), Ukraine (1), the United Kingdom (4), United States (27: Alaska, California, Illinois, Iowa, Michigan, New York, Pennsylvania, Virginia, Wisconsin)

• Chazyan of United States (1: Virginia)

• Whiterockian of United States (1: Nevada)

• Ordovician of Australia (2), Canada (5: Nunavut, Quebec, Québec), China (12), Estonia (4), India (1), Norway (4), the Russian Federation (21), United States (9: Alaska, Kentucky, Ohio, Tennessee)

Total: 454 collections each including a single occurrence