• Quaternary of Argentina (6 collections), Canada (15: British Columbia, New Brunswick, Newfoundland, Ontario, Quebec), Cape Verde (2), Chile (10), Cuba (1), France (1), Greenland (27), Iceland (3), Jamaica (1), Japan (2), Mexico (17), Morocco (1), New Zealand (1), Norway (1), Panama (5), Peru (4), Saudi Arabia (1), South Africa (1), Spain (2), the United Kingdom (1), United States (89: Alaska, California, Florida, Maryland, Massachusetts, North Carolina, Oregon, South Carolina, Virginia, Washington)

• Blancan of United States (3: California)

• Pliocene to Pleistocene of Chile (5), Mexico (1), United States (1: California)

• Pliocene to Holocene of Chile (1)

• Pliocene of Chile (10), Colombia (1), Ecuador (1), Holy See (Vatican City State) (1), Iceland (1), Indonesia (1), Mexico (5), Pakistan (1), Spain (2), United States (34: California, Florida, North Carolina, South Carolina, Virginia)

• Miocene to Pliocene of Chile (1), United States (3: Alaska, California)

• Miocene of Algeria (3), Argentina (3), Belgium (2), Brazil (3), Cape Verde (1), Chile (14), Costa Rica (1), Egypt (1), Fiji (2), Haiti (3), Indonesia (2), Japan (6), Libya (1), Malta (1), Mexico (3), Morocco (3), New Zealand (3), Panama (1), Poland (1), Portugal (2), South Africa (1), Spain (1), Taiwan (1), United States (121: Alaska, California, Florida, Maryland, New Jersey, North Carolina, South Carolina)

• Oligocene to Miocene of United States (3: California, Florida)

• Oligocene to Pliocene of Argentina (1)

• Oligocene of Canada (1: British Columbia), Germany (2), Japan (6), Oman (1), Slovenia (1), United States (10: California, North Carolina, South Carolina, Washington)

• Eocene of Indonesia (1), Namibia (1), Nigeria (2), the United Kingdom (3), United States (5: Alabama, South Carolina, Texas, Washington)

• Paleocene to Oligocene of Belize (2)

• Jurassic of Canada (1: British Columbia)

Total: 483 collections including 547 occurrences