• Quaternary of China (1 collection), France (1), India (9), Italy (1), Japan (5), United States (8: Florida, Michigan, Washington)

• Pliocene to Pleistocene of Italy (1)

• Pliocene of China (7), Germany (6), Japan (1), Portugal (10), Slovakia (1)

• Hemphillian of United States (1: Indiana)

• Miocene to Pliocene of France (1), Germany (1), Japan (2)

• Miocene to Oligocene of United States (1: Montana)

• Miocene of Azerbaijan (1), Canada (1: Northwest Territories), China (13), Germany (19), Japan (19), Poland (2), the Russian Federation (2), South Korea (1), Spain (1), Switzerland (2), Taiwan (1), Turkey (1), United States (16: California, Idaho, Montana, Nebraska, Nevada, Virginia, Washington)

• Neogene of China (1)

• Oligocene to Miocene of Germany (1), United States (3: Montana)

• Oligocene of Azerbaijan (1), Canada (1: British Columbia), China (1), the Czech Republic (1), Germany (6), Japan (2), the Russian Federation (6), United States (11: Idaho, Montana, Oregon)

• Eocene to Oligocene of North Korea (1), United States (4: Colorado)

• Eocene of Canada (6: British Columbia), China (6), the United Kingdom (1), United States (13: Colorado, Washington, Wyoming)

• Clarkforkian of United States (9: North Dakota, Wyoming)

• Tertiary of Japan (3)

• Paleocene of United States (3: Colorado, Montana, Wyoming)

Total: 216 collections including 409 occurrences

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