Distribution:
• Quaternary of Chile (1 collection), Kenya (17), Mexico (1), Tanzania (2), United States (1: Florida)
• Pliocene of Chile (2), United States (5: California)
• Miocene to Pliocene of Chile (1)
• Neogene of Slovakia (1)
• Miocene of Argentina (1), Chile (1), Pakistan (2), Peru (1), Switzerland (5), United States (2: California, Texas)
• Oligocene of New Zealand (1), Pakistan (3), Peru (2), United States (1: North Carolina)
• Eocene of Egypt (1), Peru (1), Spain (2), the United Kingdom (3), United States (36: Alabama, Florida, Louisiana, Mississippi, North Carolina, Utah, Wyoming)
• Paleocene of Peru (1), United States (75: Alabama, Colorado, South Carolina)
• Cretaceous of Algeria (1), Argentina (3), Brazil (10), Canada (2: Alberta), Chile (7), China (1), the Czech Republic (1), Egypt (1), France (1), Germany (1), Mongolia (1), Romania (2), Spain (9), Tunisia (1), the United Kingdom (1), United States (204: Alabama, Arkansas, Colorado, Georgia, Kansas, Maryland, Minnesota, Mississippi, Missouri, Montana, New Jersey, New Mexico, North Carolina, South Carolina, Tennessee, Texas, Utah, Wyoming)
• Jurassic to Cretaceous of Antarctica (1)
• Jurassic of Argentina (2), Cuba (1), France (2), Germany (7), Japan (1), Kyrgyzstan (1), Poland (1), Turkey (1), the United Kingdom (6), United States (3: Arizona, Wyoming), Venezuela (1)
• Triassic of Brazil (2), Egypt (1), France (1), Hungary (2), India (1), Poland (1), Spain (1), United States (10: Arizona, Nevada, New Mexico, Texas), Zimbabwe (1)
• Rotliegendes of United States (1: New Mexico)
• Permian of Tunisia (1), United States (10: Oklahoma, Texas)
• Carboniferous of Canada (1: Alberta), the Czech Republic (1), Japan (1), the United Kingdom (35), United States (46: Alabama, Arkansas, Illinois, Indiana, Iowa, Kansas, Missouri, New Mexico, Oklahoma, Pennsylvania, Texas)
• Devonian of Australia (1), Canada (3: Nunavut, Ontario), China (1), Germany (2), United States (9: New York, Pennsylvania, Wyoming)
• Silurian of Belarus (1), Canada (1: Northwest Territories), China (1), the United Kingdom (3), United States (1: California)
• Ordovician of Australia (1), United States (1: Colorado)
• Cambrian of Australia (1), China (1)
Total: 585 collections including 685 occurrences