• Quaternary of Antigua and Barbuda (1 collection), the Bahamas (8), Cayman Islands (2), Croatia (1), France (4), Germany (1), Greece (1), Italy (4), Jamaica (1), Japan (1), the Netherlands (1), Romania (1), Spain (6), the United Kingdom (4), United States (32: Alabama, Arizona, California, Colorado, Florida, Georgia, Kansas, Maryland, New Mexico, Oklahoma, Pennsylvania, Tennessee, Texas, Virginia, West Virginia)

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

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

• Miocene of Austria (1), Germany (1), Greece (2), Hungary (9), Italy (6), Moldova (1), Romania (2), the Russian Federation (1), Slovakia (1), Ukraine (1), United States (15: Florida, Kansas, Nebraska, South Dakota, Texas)

• Oligocene of Germany (1)

• Eocene of Canada (1: Saskatchewan)

Total: 119 collections including 140 occurrences