• Triassic of China (7 collections)

• Permian to Triassic of China (1)

• Permian of Afghanistan (7), Armenia (16), Austria (2), Azerbaijan (16), Bolivia (15), Canada (7: Nunavut, Yukon), China (396), Croatia (3), Greece (20), Guatemala (1), Hungary (2), India (1), Iran (44), Italy (5), Japan (19), Laos (2), Madagascar (1), Malaysia (17), Mexico (3), Myanmar (2), Nepal (1), Oman (11), Pakistan (100), Peru (2), the Russian Federation (5), Saudi Arabia (1), Slovenia (2), Tajikistan (7), Thailand (16), Tunisia (15), Turkey (6), Ukraine (4), the United Arab Emirates (1), United States (367: Alaska, Kansas, Nevada, New Mexico, Texas), Venezuela (1), Vietnam (2)

• Carboniferous to Permian of Bolivia (1), United States (7: California, Texas)

• Carboniferous of Australia (47), Belgium (2), Belize (2), Bolivia (1), Brazil (1), Canada (7: Alberta, Northwest Territories, Nunavut, Yukon), China (8), Egypt (1), Germany (3), India (2), Ireland (4), Italy (1), Malaysia (2), Mexico (1), the Russian Federation (1), the United Kingdom (79), United States (179: Alaska, Arizona, Arkansas, California, Colorado, Idaho, Illinois, Indiana, Iowa, Iowa/Illinois, Kansas, Kentucky, Missouri, Montana, Nebraska, Nevada, New Mexico, Ohio, Oklahoma, Texas, Utah, Washington, Oregon, Idaho, Montana, Nevada, Utah, California, Wyoming)

• Givetian of United States (1: Missouri)

• Devonian of Afghanistan (9), Argentina (4), Australia (18), Belgium (53), Bolivia (2), Canada (174: Alberta, Alberta, Saskatchewan, Mackenzie, British Columbia, Manitoba, Northwest Territories, Nova Scotia, Nunavut, Ontario, Quebec, Yukon, Yukon Territory), China (40), the Czech Republic (6), France (21), Germany (37), Libya (1), Luxembourg (1), Morocco (2), Myanmar (2), New Zealand (4), Poland (18), the Russian Federation (13), Spain (16), Tajikistan (1), Ukraine (3), the United Kingdom (2), United States (357: Alaska, Arizona, California, Colorado, Illinois, Iowa, Maryland, West Virginia, Virginia, Michigan, Missouri, Montana, Nevada, New Mexico, New York, Ohio, Pennsylvania, Virginia, West Virginia, Wisconsin), Venezuela (1), Vietnam (4)

• Whitwellian of Canada (3: Northwest Territories)

• Jaani of Estonia (2)

• Niagaran of United States (1: Ohio)

• Silurian to Devonian of Argentina (1), Canada (1: Nova Scotia), Morocco (3)

• Silurian of Argentina (4), Australia (14), Belarus (3), Canada (64: Northwest Territories, Nova Scotia, Nunavut, Quebec, Québec, Yukon, Yukon Territory), China (22), the Czech Republic (6), Estonia (29), France (1), Iran (1), Ireland (3), Latvia (1), Lithuania (15), Morocco (1), Norway (24), Poland (1), Spain (4), Sweden (13), Ukraine (7), the United Kingdom (79), United States (15: California, Indiana, Iowa, Nevada, New York)

• Dobrotivian of France (3), Portugal (1), Spain (3)

• Letna of the Czech Republic (1)

• Liben of the Czech Republic (1)

• Chazyan of United States (2: Alabama, Tennessee)

• Whiterockian of United States (1: Nevada)

• Klabava of the Czech Republic (1)

• Arenig of China (4), the United Kingdom (1)

• Dawan of China (2)

• Ordovician to Silurian of Bolivia (1), Canada (4: Québec), Norway (1)

• Ordovician of Argentina (6), Australia (2), Austria (1), Belarus (2), Belgium (9), Bolivia (3), Canada (16: Northwest Territories, Ontario, Quebec, Québec, Yukon), China (46), the Czech Republic (19), Estonia (53), France (4), Iran (9), Ireland (14), Italy (4), Kazakhstan (9), Latvia (30), Lithuania (3), Morocco (8), Myanmar (1), New Zealand (1), Norway (20), Peru (2), Poland (2), Portugal (4), the Russian Federation (4), Spain (11), Sweden (27), Thailand (1), Turkey (3), the United Kingdom (64), United States (129: Alaska, California, Georgia, Illinois, Iowa, Kentucky, Minnesota, Missouri, New York, Oklahoma, Tennessee, Virginia, Wisconsin), Venezuela (1)

Total: 3119 collections including 4069 occurrences