• Triassic of Bosnia and Herzegovina (1 collection), India (1), Indonesia (1), New Zealand (1), United States (2: California)

• Permian of Australia (1), Brazil (1), China (6), India (1), Indonesia (5), Malaysia (1), Pakistan (3), Peru (1), the Russian Federation (3), South Africa (1), United States (6: Idaho, Texas)

• Carboniferous to Permian of the Russian Federation (1)

• Carboniferous of Antarctica (1), Argentina (1), Canada (3: Alberta, Northwest Territories, Yukon), China (2), Ireland (1), Libya (1), Mexico (10), the United Kingdom (6), United States (51: Alaska, Arkansas, California, Indiana, Iowa, Kentucky, Maryland, Missouri, Montana, Nevada, New Mexico, Ohio, Oklahoma, Utah, Virginia, West Virginia)

• Devonian of Antarctica (2), Argentina (1), Australia (5), Bolivia (1), Brazil (23), Canada (3: Alberta, New Brunswick, Quebec), China (8), Colombia (1), the Czech Republic (1), France (5), Germany (3), Ghana (1), Libya (4), Luxembourg (1), Morocco (1), New Zealand (3), Poland (5), the Russian Federation (3), South Africa (11), Spain (3), Turkey (1), the United Kingdom (5), United States (209: Alaska, Florida, Iowa, Maryland, Michigan, Missouri, Montana, New York, Ohio, Pennsylvania, Pennsylvannia, Virginia, West Virginia), Venezuela (1), Vietnam (4)

• Silurian to Devonian of Spain (1)

• Silurian of Canada (4: British Columbia, Nova Scotia, Ontario), China (2), the Czech Republic (1), Estonia (1), France (1), the United Kingdom (44), United States (13: New York)

• Letna of the Czech Republic (1)

• Volkhov of Argentina (1)

• Ordovician of Argentina (1), Bolivia (1), Canada (5: Ontario, Quebec), China (2), the Czech Republic (2), Norway (7), the Russian Federation (1), Sweden (1), the United Kingdom (3), United States (40: Illinois, Iowa, Indiana, Kentucky, Michigan, Minnesota, Minnesota, Illinois, Iowa, New York, Ohio, Pennsylvania, Tennessee, Virginia, Wisconsin, Illinois, Iowa)

Total: 549 collections including 726 occurrences