• Quaternary of Argentina (1 collection), Brazil (1), France (1), Portugal (1), United States (19: California, Florida, Georgia, Louisiana, Maryland, Virginia)

• Pliocene of Colombia (1), Ecuador (1), Jamaica (1), United States (4: California, Florida, North Carolina)

• Hemphillian of United States (1: Florida)

• Miocene of Argentina (3), Belgium (1), Chile (1), Colombia (1), Costa Rica (1), Czechia (2), France (2), Germany (5), Italy (9), Kazakhstan (1), Mexico (2), Panama (8), Peru (1), United States (5: California, Nebraska), Venezuela (2)

• Neogene of Indonesia (3)

• Oligocene of Germany (1), United States (14: Alabama, California, Florida, Louisiana, Mississippi)

• Eocene of India (1), the United Kingdom (1), United States (24: Alabama, Louisiana, Mississippi, Texas)

• Paleocene of United States (3: Montana)

• Tertiary of United States (1: Mississippi)

• Cretaceous of Argentina (1), Canada (4: Alberta, Saskatchewan), United States (17: Montana, New Jersey, New Mexico, South Dakota, Wyoming)

Total: 145 collections including 218 occurrences