• Quaternary of Brazil (3 collections), Canada (3: Alberta, Ontario, Saskatchewan), Costa Rica (1), France (1), Greece (3), India (1), Israel (1), Italy (1), Kenya (4), Mexico (9), Nicaragua (3), Pakistan (1), Turkmenistan (1), United States (42: California, Florida, Idaho, Kansas, Michigan, Missouri, Nevada, Oklahoma, Oregon, Pennsylvania, Texas)

• Blancan of United States (20: California, Idaho, Kansas, Nevada, Texas)

• Pliocene to Pleistocene of Italy (1), Turkey (1), Venezuela (1)

• Pliocene of Azerbaijan (1), Greece (1), Tanzania (1), United States (3: California, Texas)

• MN 13 of China (1)

• Hemphillian of United States (21: California, Florida, Idaho, Nevada, Oregon)

• Miocene to Pliocene of Ukraine (1), United States (2: Montana)

• Miocene of Algeria (2), Austria (7), Bulgaria (1), Canada (1: Saskatchewan), China (1), Germany (2), Greece (3), Kazakhstan (1), Kenya (3), Moldova (1), Nepal (2), Pakistan (26), Slovakia (2), Spain (4), Tunisia (2), Uganda (1), the United Arab Emirates (1), United States (52: California, Colorado, Florida, Idaho, Kansas, Louisiana, Montana, Nebraska, Nevada, Oregon, South Dakota, Texas, Washington)

• Oligocene of Kenya (1), Oman (1), Pakistan (1)

• Eocene of Algeria (1), Mali (1), Morocco (1), Turkey (1), Western Sahara (1)

Total: 248 collections each including a single occurrence