• Devonian of Brazil (1 collection), Canada (4: Nunavut, Ontario), the Czech Republic (1), Germany (1), Myanmar (1), Poland (2)

• Silurian to Devonian of Poland (1)

• Silurian of Canada (1: Nunavut), the Czech Republic (3), Peru (2), Sweden (2), the United Kingdom (2), United States (1: Illinois)

• Ordovician of South Africa (1), the United Kingdom (1), United States (7: Indiana, Iowa, Kentucky, Ohio)

Total: 31 collections each including a single occurrence