• Quaternary of Algeria (2 collections), Argentina (58), Austria (1), Azerbaijan (1), Belgium (1), Bolivia (8), Brazil (24), Bulgaria (1), Canada (31: Alberta, British Columbia, Northwest Territories, Nunavut, Saskatchewan, Yukon), Chile (24), China (12), the Congo-Kinshasa (4), Costa Rica (1), Croatia (1), the Czech Republic (2), Djibouti (4), Ecuador (17), Egypt (16), El Salvador (2), Eritrea (2), Ethiopia (54), France (30), Georgia (3), Germany (31), Greece (30), Guatemala (5), Honduras (3), Hungary (7), India (16), Israel (6), Italy (38), Kazakhstan (3), Kenya (85), Kyrgyzstan (1), Libya (4), Malta (1), Mexico (35), Monaco (2), Mongolia (1), Morocco (10), Namibia (1), the Netherlands (6), Nicaragua (3), Pakistan (2), Panama (1), Peru (14), Portugal (3), Romania (18), the Russian Federation (12), Saudi Arabia (2), South Africa (52), Spain (44), Sudan (6), Swaziland (1), Syria (2), Taiwan (1), Tajikistan (3), Tanzania (37), Tunisia (1), Turkey (3), Turkmenistan (1), the United Kingdom (13), United States (437: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Mississippi, Missouri, Montana, Nebraska, Nevada, New Jersey, New Mexico, Ohio, Oklahoma, Oregon , Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Washington, West Virginia, Wyoming), Uruguay (8), Uzbekistan (1), Venezuela (3), Zambia (4)

• Blancan of El Salvador (1), Mexico (13), United States (198: Arizona, California, Colorado, Florida, Idaho, Kansas, Montana, Nebraska, Nevada, New Mexico, South Dakota, Texas, Washington)

• Pliocene to Pleistocene of Bulgaria (1), China (1), the Congo-Kinshasa (1), Costa Rica (1), Ethiopia (6), France (2), Greece (5), India (1), Italy (4), Kenya (7), Malawi (2), Nepal (1), the Russian Federation (1), South Africa (4), Spain (2), Tajikistan (1), Turkey (1), United States (1: Montana), Venezuela (1)

• Pliocene to Holocene of Malawi (1), Uganda (1)

• Pliocene of Argentina (4), Chile (1), France (1), Georgia (1), Greece (7), Hungary (5), India (4), Italy (2), Kazakhstan (1), Mexico (1), Romania (6), the Russian Federation (4), South Africa (1), Spain (8), Tajikistan (5), Ukraine (1), United States (9: California, Texas)

• Hemphillian of Canada (1: Alberta), Costa Rica (1), Honduras (3), Mexico (34), United States (127: Alabama, Arizona, California, Colorado, Florida, Idaho, Kansas, Nebraska, Nevada, New Mexico, Oklahoma, Oregon, Texas)

• Baodean of China (1)

• Miocene to Pleistocene of the Netherlands (1), South Africa (1), United States (1: Massachusetts)

• Miocene to Pliocene of South Africa (4), United States (11: California, Florida, Montana, Oklahoma)

• Neogene of Argentina (1)

• Miocene of El Salvador (1), Honduras (3), Mexico (1), Panama (1), Ukraine (1), United States (383: Arizona, California, Colorado, Florida, Georgia, Kansas, Montana, Nebraska, Nevada, New Mexico, Oklahoma, Oregon, South Dakota, Texas, Utah, Virginia, Wyoming)

Total: 2150 collections including 2699 occurrences