• Quaternary of the Congo-Kinshasa (1 collection), France (2), Italy (2), South Africa (1), United States (3: California, Kansas, Pennsylvania)

• Blancan of United States (1: California)

• Pliocene of Greece (1), Kenya (1), South Africa (2), Tanzania (1)

• Hemphillian of Mexico (1), United States (2: Florida, Kansas)

• Miocene to Pliocene of South Africa (1)

• Miocene of Canada (1: Saskatchewan), France (2), Germany (2), Greece (1), Italy (26), Kenya (1), Spain (1), Switzerland (6), United States (5: Louisiana, Nebraska, Texas, Wyoming)

• Arikareean of United States (1: Wyoming)

• Oligocene of Bosnia and Herzegovina (1), China (1), Serbia and Montenegro (1), Turkey (2), United States (1: South Dakota)

• Eocene of China (1), India (1), United States (1: Utah)

• Paleocene of Mongolia (1)

Total: 75 collections each including a single occurrence