• Permian of Canada (1: British Columbia collection)

• Carboniferous of Australia (10), Canada (8: Alberta, Northwest Territories, Yukon), China (1), Ireland (1), Mexico (1), the United Kingdom (26), United States (64: Alaska, Arizona, California, Indiana, Iowa, Kentucky, Missouri, Montana, Nevada, Texas, Utah, Virginia)

• Devonian of Algeria (5), Australia (1), Brazil (3), Canada (17: New Brunswick, Northwest Territories, Nova Scotia, Nunavut, Ontario, Quebec), China (8), Colombia (2), France (6), Germany (2), Morocco (4), New Zealand (1), Poland (15), the Russian Federation (6), Spain (1), Tajikistan (3), United States (246: Alaska, Colorado, Indiana, Iowa, Maryland, Maryland, West Virginia, Virginia, Michigan, Missouri, Montana, Montana, and Wyoming, Nevada, New York, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, West Virginia), Venezuela (2), Vietnam (2)

• Jaani of Lithuania (9)

• Niagaran of United States (1: Ohio)

• Silurian to Devonian of Algeria (1), Canada (1: Nova Scotia), United States (1: Oklahoma)

• Silurian of Afghanistan (1), Austria (1), Canada (93: Manitoba, Northwest Territories, Nova Scotia, Ontario, Quebec, Québec), China (8), the Czech Republic (4), Estonia (1), France (1), Ireland (2), Lithuania (18), Mauritania (1), Norway (1), Paraguay (1), the Russian Federation (7), Spain (1), Sweden (10), Ukraine (1), the United Kingdom (15), United States (117: Alaska, California, Illinois, Indiana, Maryland, Michigan, New York, Oklahoma, Virginia, West Virginia)

• Chazyan of United States (2: New York)

• Ordovician of United States (19: Georgia, New York, Virginia)

Total: 753 collections including 843 occurrences