• Uhaku of Estonia (1 collection)

• Aluoja of Estonia (4), the Russian Federation (1)

• Whiterockian of United States (8: Nevada)

• Volkhov of Belarus (1), Estonia (6), Lithuania (4), the Russian Federation (31)

• Valaste of Estonia (3), Sweden (1)

• Hunderum of the Russian Federation (1)

• Ordovician of Canada (27: Newfoundland, Nunavut, Ontario, Quebec), China (3), Estonia (7), Norway (2), the Russian Federation (36), the United Kingdom (1), United States (19: California, Kentucky, Michigan, Minnesota, Missouri, Nevada, New York, Oklahoma, Tennessee)

• Tremadoc of the Russian Federation (1)

Total: 157 collections including 165 occurrences