• Quaternary of Bolivia (5 collections), Canada (8: New Brunswick, Newfoundland and Labrador, Northwest Territories, Nova Scotia, Ontario, Yukon), China (1), Mexico (8), Slovakia (2), the United Kingdom (1), United States (412: Alabama, Alaska, Arizona, Arkansas, California, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Utah, Virginia, Washington, West Virginia)

• Blancan of United States (15: California, Idaho, Kansas, Nebraska, Nevada, New Mexico, Washington)

• Pliocene to Pleistocene of Argentina (1), India (1), United States (1: Georgia)

• Pliocene of Bulgaria (1), China (4), Egypt (1), France (2), Greece (14), Hungary (1), Italy (2), Kazakhstan (4), Kyrgyzstan (1), Moldova (4), Romania (9), the Russian Federation (5), Slovakia (3), Slovenia (1), Spain (2), Ukraine (25), United States (1: Texas)

• Hemphillian of Mexico (1), United States (23: Arizona, California, Florida, Kansas, Nebraska, Nevada, Oklahoma, Oregon, Tennessee)

• Baodean of China (2)

• Miocene to Pliocene of Greece (1), Kazakhstan (1)

• Miocene of Algeria (2), Austria (1), Bulgaria (1), Canada (2: Saskatchewan), China (10), Egypt (1), France (9), Georgia (1), Germany (1), Greece (11), India (4), Kazakhstan (2), Kenya (2), Libya (1), Macedonia (1), Moldova (8), Namibia (2), Pakistan (4), Portugal (3), the Russian Federation (3), Serbia and Montenegro (4), Slovakia (4), Spain (5), Syria (1), Thailand (1), Turkey (1), Uganda (1), Ukraine (10), United States (53: California, Colorado, Florida, Louisiana, Maryland, Montana, Nebraska, Nevada, New Mexico, North Carolina, Oregon, South Dakota, Texas, Virginia)

• Neogene of Argentina (1), Indonesia (1), Myanmar (1), Slovakia (1), Ukraine (1)

• Oligocene of Angola (1), Kenya (2), Saudi Arabia (1)

Total: 721 collections including 741 occurrences