• Quaternary of Argentina (4 collections), Belgium (1), the Czech Republic (1), Fiji (1), France (1), Georgia (1), Germany (1), Greece (1), Hungary (4), Italy (11), the Netherlands (1), the Philippines (4), Portugal (1), Puerto Rico (1), Spain (4), the United Kingdom (2), United States (17: Alabama, California, Colorado, Florida, Kansas, New Mexico, Tennessee, Texas), Venezuela (2)

• Blancan of Mexico (1)

• Pliocene to Pleistocene of Hungary (1), Italy (3)

• Pliocene of Afghanistan (1), Argentina (4), Australia (1), Canada (1: Northwest Territories), Greece (7), Hungary (2), India (2), Italy (2), Kenya (1), Moldova (1), Slovakia (3), South Africa (1), Spain (1), Turkey (1), Venezuela (1)

• Huayquerian of Argentina (1)

• Hemphillian of United States (5: Florida, Idaho, Kansas, Oklahoma, Oregon)

• Miocene of Afghanistan (1), Argentina (3), Australia (1), Austria (1), Chile (1), Egypt (1), Germany (1), Greece (7), India (1), Italy (2), Portugal (1), Saudi Arabia (3), Slovakia (1), Spain (4), Switzerland (1), United States (5: California, Nebraska, Texas)

• Oligocene of Argentina (1), Canada (2: Saskatchewan), Libya (1), Mongolia (3), Oman (1), Peru (5), Turkey (1)

• Eocene to Oligocene of Peru (1)

• Eocene of Algeria (1), France (8), India (1), Namibia (3), Peru (3), Spain (1), United States (17: California, Colorado, Nevada, North Dakota, Texas, Utah, Wyoming)

• Clarkforkian of United States (1: Wyoming)

• Paleocene of Belgium (1), Canada (3: Alberta, Saskatchewan), China (1), Morocco (1), Romania (2), United States (6: Montana, North Dakota, Texas, Wyoming)

• Cretaceous of Argentina (14), Austria (1), Bolivia (1), Brazil (3), Cameroon (1), Canada (59: Alberta, Saskatchewan), Chile (1), China (2), Denmark (1), France (9), India (11), Israel (1), Japan (5), Kazakhstan (1), Madagascar (2), Malawi (2), Mexico (2), Morocco (2), Niger (2), Portugal (1), Romania (14), the Russian Federation (1), Spain (11), Sudan (1), the United Kingdom (4), United States (66: Arkansas, Idaho, Montana, New Jersey, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, Utah, Virginia, Wyoming), Uzbekistan (1)

• Jurassic to Cretaceous of Morocco (5)

• Jurassic of France (2), India (1), Kyrgyzstan (1), Portugal (2), the United Kingdom (3), United States (8: Arizona, Colorado, Utah, Wyoming)

Total: 437 collections including 466 occurrences