• Silurian of Malaysia (2 collections)

• Whiterockian of United States (1: Nevada)

• Billingen of Estonia (1)

• Arenig of Argentina (2), China (3)

• Arenigian of United States (1: Alaska)

• Ordovician of Argentina (9), Australia (4), Canada (12: British Columbia, Quebec, Québec), China (21), Estonia (16), Kazakhstan (1), Malaysia (2), Mexico (11), Norway (4), the Russian Federation (17), South Korea (3), Sweden (4), United States (24: Minnesota, Nevada, New Mexico, New York, Oklahoma, Virginia, Wyoming)

• Skullrockian of United States (1: Texas)

• Cambrian to Ordovician of Canada (1: Quebec), Norway (2), the Russian Federation (2)

• Cambrian of Australia (2), Canada (26: Alberta, British Columbia, Newfoundland and Labrador, Nunavut, Nunuvat), China (33), New Zealand (1), Norway (3), the Russian Federation (3), South Korea (5), Sweden (1), the United Kingdom (1), United States (20: Nevada, New Mexico, New York, Vermont, Virginia)

Total: 239 collections including 480 occurrences