• Jurassic of Japan (2 collections)

• Triassic of Austria (1), Canada (1: Yukon), China (9), Greece (1), Japan (4), Poland (16), Romania (8), Spain (1), Thailand (1), United States (3: Idaho, Nevada), Vietnam (7)

• Carboniferous of Egypt (2), Ireland (1), Japan (1), Spain (1), the United Kingdom (8), United States (39: California, Illinois, Indiana, Kansas, Montana, New Mexico, Oklahoma, Texas)

• Givetian of Canada (1: Manitoba)

• Devonian of Australia (3), Austria (2), Canada (18: Alberta, Manitoba, Northwest Territories, Nunavut), China (1), the Czech Republic (9), Germany (6), Italy (1), Morocco (4), Myanmar (1), Poland (1), the Russian Federation (1), Ukraine (1), the United Kingdom (1), United States (23: Alaska, California, Indiana, Nevada, New York, Ohio)

• Silurian of Australia (2), Canada (2: New Brunswick, Northwest Territories), the Czech Republic (17), Poland (1), the United Kingdom (1), United States (3: Indiana, Wisconsin)

• Whiterockian of United States (18: Nevada)

• Arenig of United States (4: Oklahoma, Texas)

• Ordovician to Silurian of United States (1: California)

• Ordovician of Canada (14: British Columbia, Newfoundland, Newfoundland and Labrador, Ontario), China (6), Denmark (1), India (1), Iran (1), Kazakhstan (1), Malaysia (7), New Zealand (5), Spain (1), the United Kingdom (4), United States (12: Alaska, Iowa, Nevada, New York, Oklahoma, Texas)

• Tremadoc of Canada (4: British Columbia), China (1), the United Kingdom (1)

• Cambrian of Denmark (2), United States (4: Arkansas, California, Idaho, Texas)

Total: 293 collections including 306 occurrences