• Permian of Afghanistan (1 collection), Armenia (4), Bolivia (18), Canada (1: Nunavut), China (21), Greece (1), Guatemala (1), Indonesia (2), Iran (4), Japan (4), Laos (1), Malaysia (5), Myanmar (2), New Zealand (1), Oman (1), Pakistan (6), Peru (1), the Russian Federation (3), Thailand (14), United States (143: Alaska, California, Kansas, Nevada, Oregon, Texas), Vietnam (1)

• Carboniferous to Permian of United States (3: California)

• Carboniferous of Australia (46), Belgium (1), Bolivia (1), Brazil (1), Canada (15: Alberta, Northwest Territories, Nunavut, Yukon), China (5), Egypt (1), Iran (2), Ireland (2), Italy (1), Libya (5), Mexico (1), Morocco (1), Nepal (1), Pakistan (2), Peru (3), the Russian Federation (1), South Korea (2), the United Kingdom (52), United States (200: Alabama, Alaska, Arizona, Arkansas, California, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Missouri, Montana, Nebraska, Nevada, New Mexico, Ohio, Oklahoma, Tennessee, Texas, Utah)

• Givetian of France (2), United States (1: Missouri)

• Devonian to Carboniferous of the United Kingdom (5)

• Devonian of Afghanistan (5), Algeria (1), Australia (16), Brazil (2), Canada (20: Alberta, British Columbia, Nunavut, Ontario, Quebec, Yukon, Yukon Territory), China (11), Colombia (9), the Czech Republic (10), France (6), Germany (17), Libya (5), Morocco (7), Myanmar (2), Poland (7), the Russian Federation (9), Spain (3), Tajikistan (1), Ukraine (9), the United Kingdom (7), United States (426: Alaska, California, Indiana, Iowa, Maryland, Michigan, Missouri, Montana, Nevada, New Mexico, New York, Ohio, Oklahoma, Pennsylvania, Tennessee, Utah, West Virginia, West Virginia, Maryland, Pennsylvania), Venezuela (1), Vietnam (4)

• Jaani of Estonia (16), Lithuania (3)

• Niagaran of Canada (2: Québec), United States (1: Indiana)

• Silurian to Devonian of Australia (1), United States (1: Oklahoma)

• Silurian of Argentina (2), Australia (1), Belarus (4), Bolivia (1), Canada (75: New Brunswick, Northwest Territories, Nova Scotia, Nunavut, Ontario, Quebec, Québec, Yukon, Yukon Territory), China (4), the Czech Republic (9), Estonia (56), Ireland (2), Kazakhstan (1), Lithuania (32), Mexico (10), Mongolia (1), New Zealand (1), Norway (11), Poland (1), the Russian Federation (17), Spain (1), Sweden (21), Ukraine (7), the United Kingdom (180), United States (136: Alabama, California, Georgia, Illinois, Indiana, Iowa, Kentucky, Maine, Missouri, Nevada, New York, Oklahoma, Tennessee, West Virginia, Wisconsin), Venezuela (2)

• Ordovician to Silurian of Canada (1: New Brunswick)

• Ordovician of Canada (32: Quebec), China (1), Estonia (5), Latvia (3), Morocco (1), Norway (1), United States (2: Missouri)

Total: 1812 collections including 1967 occurrences