• Quaternary of Argentina (2 collections), India (9), United States (4: Michigan, Washington)

• Pliocene of Bolivia (3)

• Oligocene of Argentina (2)

• Eocene to Oligocene of United States (4: Colorado)

• Eocene of United States (8: Colorado, Washington, Wyoming)

• Paleocene of United States (8: Colorado, Montana, Wyoming)

• Cretaceous of Antarctica (2), Canada (4: British Columbia, Saskatchewan), United States (2: Wyoming)

• Jurassic of China (2), India (1)

Total: 51 collections including 52 occurrences