• Devonian of Greece (1 collection)

• Silurian of Estonia (1), Greece (1)

• Aluoja of Sweden (8)

• Billingen of Estonia (3)

• Arenig of Argentina (2), China (4), the Russian Federation (3)

• Ordovician of Antarctica (1), Argentina (22), Australia (4), Canada (13: British Columbia, Ontario), China (22), Estonia (17), Iran (1), Lithuania (1), Mexico (5), the Russian Federation (21), South Korea (3), Sweden (11), the United Kingdom (1), United States (17: Minnesota, New Mexico, New York, Texas, Virginia)

• Skullrockian of United States (2: New York, Texas)

• Cambrian to Ordovician of Canada (1: Quebec), the Russian Federation (1)

• Cambrian of Australia (5), Canada (17: Alberta, Newfoundland and Labrador, Nunavut, Nunuvat), China (28), Kazakhstan (1), Norway (1), the Russian Federation (2), South Korea (10), United States (7: New Mexico, New York, Vermont, Virginia)

Total: 237 collections including 333 occurrences