• Quaternary of Italy (3 collections), Kenya (2), Mexico (1), Turkey (1), United States (2: Pennsylvania, Texas)

• Pliocene of France (1)

• Miocene to Pliocene of Greece (2), Morocco (1)

• Miocene of Germany (1), Kenya (2), Slovakia (2), Spain (2), Switzerland (4), Thailand (1), Uganda (1), United States (4: Georgia, South Dakota, Texas, Wyoming)

• Oligocene of Belgium (1), China (1), Egypt (1), Kenya (1), United States (1: Florida)

• Eocene of Algeria (1), Canada (1: Saskatchewan), China (1), Japan (1), Myanmar (1), Serbia and Montenegro (2), Spain (2), Thailand (1), the United Kingdom (3), United States (34: California, Colorado, Montana, New Mexico, North Dakota, Texas, Utah, Wyoming)

• Paleocene of China (1), Mongolia (1), United States (8: New Mexico, North Dakota, Texas, Utah, Wyoming)

• Cretaceous of Mongolia (1)

Total: 93 collections including 95 occurrences