• Quaternary of the United Kingdom (1 collection)

• Jurassic of Argentina (1), France (12), Germany (31), Hungary (3), Poland (1), Portugal (13), Spain (22), Switzerland (3), the United Kingdom (20)

• Triassic of Argentina (1), Australia (1), Austria (29), Canada (10: Yukon), China (18), Hungary (6), Iran (4), Israel (2), Italy (2), Pakistan (1), Romania (11), Turkey (4), United States (6: Alaska)

• Permian of Australia (59), Azerbaijan (9), Canada (2: British Columbia), China (51), Iran (5), Italy (4), Lithuania (12), Oman (1), the Russian Federation (14), Svalbard and Jan Mayen (1), Thailand (1), United States (8: Kansas, Texas), Venezuela (1)

• Carboniferous of Canada (1: Yukon), China (3), Spain (1), Ukraine (3), the United Kingdom (10), United States (93: Arkansas, Indiana, Kansas, Kentucky, Maryland, Missouri, Montana, New Mexico, Oklahoma, Tennessee, Texas, Wyoming)

• Devonian of Canada (1: Ontario), the Czech Republic (1), France (3), Morocco (3), Poland (16), the Russian Federation (4), Ukraine (2), United States (28: Michigan, New York, Ohio, Pennsylvania, Virginia, West Virginia)

• Silurian of Estonia (1), Germany (3), Lithuania (2), the Russian Federation (2), United States (1: Oklahoma)

• Ordovician of Kazakhstan (1)

Total: 549 collections including 1094 occurrences