• Quaternary of Austria (1 collection), Canada (1: Quebec), China (1), the Czech Republic (1), Ethiopia (3), France (1), Germany (4), Greece (7), Hungary (18), Kazakhstan (1), Kenya (1), Mongolia (1), Romania (12), the Russian Federation (1), Tanzania (1), Turkey (1), Ukraine (1), United States (37: Florida, Georgia, Kansas, Maryland, Michigan, Missouri, Montana, Nebraska, Ohio, Oklahoma, Pennsylvania, South Dakota, Tennessee, Utah, Virginia, West Virginia)

• Blancan of United States (8: Kansas, Nebraska)

• Pliocene to Pleistocene of China (1)

• Pliocene of China (11), Germany (1), Hungary (2), Mongolia (1), Poland (2), Romania (1), the Russian Federation (2), Ukraine (1)

• Hemphillian of United States (5: Nebraska, Nevada, Oregon)

• Miocene of Austria (2), Canada (3: Saskatchewan), China (15), Germany (2), Kazakhstan (2), Libya (1), Mongolia (16), Morocco (1), the Russian Federation (1), Saudi Arabia (2), Spain (4), Switzerland (1), Turkey (1), United States (69: California, Colorado, Delaware, Kansas, Montana, Nebraska, Nevada, Oklahoma, Oregon, South Dakota, Texas, Wyoming)

• Harrisonian of United States (4: Nebraska)

• Arikareean of United States (5: Montana, Oregon, South Dakota)

• Oligocene to Miocene of China (1), Mongolia (3), Turkey (1)

• Oligocene of Canada (1: Saskatchewan), China (25), the Czech Republic (1), France (4), Germany (4), Kazakhstan (4), Mongolia (70), Pakistan (1), Serbia and Montenegro (6), Spain (7), Switzerland (1), Turkey (2), United States (4: Nebraska, South Dakota)

• Eocene to Oligocene of China (1), Turkey (1)

• Eocene of China (5), Kazakhstan (5), United States (41: California, Nebraska, Nevada, Texas, Utah)

Total: 445 collections including 766 occurrences