• Quaternary of Antigua and Barbuda (1 collection), Australia (3), the Bahamas (8), Bolivia (1), Cayman Islands (2), Croatia (1), France (4), Germany (1), Greece (1), Italy (4), Jamaica (1), Japan (1), Mexico (2), the Netherlands (1), New Zealand (2), Romania (1), Spain (6), the United Kingdom (4), United States (38: Alabama, Arizona, California, Colorado, Florida, Georgia, Kansas, Maryland, New Mexico, Oklahoma, Pennsylvania, Tennessee, Texas, Virginia, West Virginia)

• MN 16 of Italy (1)

• Villafranchian of Italy (1)

• Pliocene of Argentina (2), Greece (3), Italy (1), Morocco (1)

• Turolian of Greece (2)

• Hemphillian of United States (4: Arizona, Nebraska)

• Miocene of Argentina (3), Australia (2), Austria (1), Germany (1), Hungary (9), Italy (6), Moldova (1), Romania (2), the Russian Federation (1), Slovakia (1), Ukraine (1), United States (17: Colorado, Florida, Kansas, Nebraska, South Dakota, Texas)

• Oligocene of Argentina (1), Australia (1), Germany (1)

• Eocene of Argentina (1), Australia (1), Canada (1: Saskatchewan), France (1)

• Paleocene to Eocene of Peru (1)

• Paleocene of Bolivia (1), United States (1: Nevada)

• Cretaceous to Paleogene of United States (1: Nevada)

• Cretaceous of India (3), Madagascar (27), United States (1: Wyoming)

Total: 184 collections including 236 occurrences