• Triassic of China (3 collections), India (1), New Zealand (1)

• Permian of Afghanistan (5), Armenia (4), Australia (11), Austria (2), Bolivia (15), Canada (6: British Columbia, Nunavut), Chile (3), China (44), Cuba (1), India (1), Indonesia (4), Iran (15), Italy (1), Japan (3), Malaysia (1), Mongolia (11), Nepal (2), New Zealand (1), Oman (12), Pakistan (1), Peru (10), the Russian Federation (80), Slovenia (1), Svalbard and Jan Mayen (26), Tajikistan (7), Thailand (10), Tunisia (1), the United Arab Emirates (2), United States (105: Alaska, Arizona, Kansas, Nevada, New Mexico, Texas, Washington)

• Carboniferous to Permian of United States (4: California)

• Carboniferous of Australia (2), Belgium (2), Bolivia (2), Canada (2: Northwest Territories), China (1), Egypt (1), France (1), Germany (1), Ireland (4), Japan (4), Mexico (1), Mongolia (6), Peru (3), the Russian Federation (1), Spain (23), Svalbard and Jan Mayen (7), the United Kingdom (10), United States (283: Alabama, Alaska, Arizona, California, Colorado, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maryland, Missouri, Montana, Nebraska, Nevada, New Mexico, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas, Utah, Virginia)

• Devonian of Belarus (1), Belgium (1), Canada (23: Alberta), China (3), the Czech Republic (2), France (5), Germany (37), Iran (5), Morocco (8), Poland (1), the Russian Federation (2), Spain (18), the United Kingdom (1), United States (26: Michigan, Montana, New York, Ohio, Virginia), Western Sahara (1)

• Niagaran of United States (1: New York)

• Silurian of Belarus (3), Norway (2), Sweden (1), the United Kingdom (3), United States (16: Maryland, New York)

• Uhaku of Sweden (1)

• Chazyan of United States (4: Virginia)

• Ordovician of Estonia (3), France (1), Sweden (2), United States (8: Nevada, Tennessee)

Total: 927 collections including 1215 occurrences