• Quaternary of Australia (20 collections), the Bahamas (1), France (1), India (1), United States (3: Florida, Michigan, Virginia)

• Pliocene to Pleistocene of Italy (3)

• Pliocene of Germany (7), Portugal (2), Slovakia (1)

• Hemphillian of United States (1: Indiana)

• Miocene to Oligocene of Peru (1)

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

• Miocene of China (1), Denmark (2), Germany (67), Japan (5), Poland (2), Portugal (1), the Russian Federation (8), Saudi Arabia (1), United States (4: Idaho, Nebraska, Vermont, Virginia)

• Oligocene to Miocene of Australia (3), Germany (1)

• Oligocene of the Czech Republic (1), Germany (17), Peru (2), the Russian Federation (11), the United Kingdom (1), United States (3: Montana, Oregon, South Carolina)

• Eocene to Miocene of Argentina (1)

• Eocene of Canada (1: British Columbia), China (2), Germany (2), the United Kingdom (13), United States (18: Alaska, California, Colorado, North Dakota, Oregon, Texas, Virginia, Washington, Wyoming)

• Clarkforkian of United States (36: North Dakota, Wyoming)

• Paleocene to Eocene of Belgium (1)

• Tertiary of Japan (2)

• Paleocene of Argentina (3), Canada (1: Alberta), China (2), France (1), the United Kingdom (1), United States (107: Colorado, Montana, New Mexico, North Dakota, South Dakota, Wyoming)

• Cretaceous of Argentina (1), Canada (5: Alberta, British Columbia, Saskatchewan), the Russian Federation (5), United States (51: Colorado, Kansas, Montana, New Mexico, North Dakota, South Dakota, Wyoming)

Total: 428 collections including 633 occurrences