• Cretaceous of Switzerland (1 collection)

• Triassic of Bosnia and Herzegovina (1), China (10), Hungary (1), Indonesia (4), Italy (16), Turkey (1), United States (1: Alaska)

• Permian of Cambodia (1), China (7), Indonesia (1), Malaysia (1), Nepal (1), the Russian Federation (2), Tunisia (4), United States (10: Alaska, Arizona, California, Texas, Utah)

• Desmoinesian of United States (3: Kansas, New Mexico, Texas)

• Pennsylvanian of United States (1: California)

• Atokan of United States (1: Wyoming)

• Chesterian of United States (2: Utah)

• Carboniferous to Permian of United States (2: California)

• Carboniferous of Australia (6), Belgium (1), Canada (1: Alberta), China (1), the United Kingdom (10), United States (35: Alabama, California, Indiana, Iowa, Nevada, New mexico, Oklahoma, Utah)

• Mississippian of United States (1: California)

• Couvinien of Australia (1)

• Devonian of Australia (28), Austria (15), Canada (21: Manitoba, New Brunswick, Northwest Territories, Ontario, Quebec), China (4), the Czech Republic (10), France (7), Germany (27), Italy (3), Japan (1), Kyrgyzstan (1), Mauritania (1), Morocco (5), Poland (6), the Russian Federation (1), the United Kingdom (5), United States (44: Alaska, California, Illinois, Maine, Maryland, Michigan, Missouri, Nevada, New York, Ohio)

• Silurian to Devonian of Australia (1)

• Niagaran of United States (2: Indiana, New York)

• Silurian of Argentina (3), Brazil (1), Canada (58: Manitoba, Northwest Territories, Nova Scotia, Nunavut, Ontario, Quebec, Québec), China (15), the Czech Republic (15), Estonia (1), Germany (1), Greenland (2), Ireland (2), Lithuania (2), Norway (2), Paraguay (2), the Russian Federation (17), Sweden (14), Ukraine (3), the United Kingdom (12), United States (101: Alaska, California, Georgia, Illinois, Indiana, Iowa, Maryland, Michigan, New York, Ohio, Virginia, West Virginia, Wisconsin)

• Ordovician of Australia (4), Canada (88: British Columbia, Manitoba, Newfoundland, Northwest Territories, Nunavut, Ontario, Quebec, Québec), China (8), Estonia (5), Germany (1), Greenland (3), Ireland (1), Norway (4), Svalbard and Jan Mayen (2), Sweden (1), the United Kingdom (15), United States (175: Alaska, Arkansas, California, Georgia, Illinois, Iowa, Indiana, Iowa, Kentucky, Maryland, Michigan, Minnesota, Missouri, Montana, New York, Ohio, Tennessee, Texas, Utah, Vermont, Virginia, Wisconsin, Wyoming)

• Llandeilo of China (2)

• Chazy of United States (1: New York)

• Whiterockian of United States (2: California, Nevada)

• Cassinian of Canada (4: Newfoundland, Newfoundland and Labrador, Quebec), the United Kingdom (1), United States (30: Arkansas, Minnesota, Missouri, Vermont)

• Arenig of Australia (1), China (9), United States (2: Montana, Oklahoma)

• Arenigian of United States (3: Virginia)

• Jefferson of United States (4: Missouri, Oklahoma)

• Jeffersonian of United States (2: Texas)

Total: 928 collections including 1342 occurrences