• Quaternary of Canada (1: Ontario collection), France (2), India (1), South Pacific (8), United States (1: Maryland)

• Pliocene to Pleistocene of South Pacific (1)

• Pliocene of Greece (1), Panama (1), United States (1: North Carolina)

• Miocene to Pliocene of Australia (1), North Atlantic (2)

• Miocene of Algeria (1), Austria (1), Croatia (1), Greece (23), Italy (6), Morocco (2), Poland (18), Puerto Rico (4), South Africa (3), South Pacific (17), Trinidad and Tobago (2)

• Oligocene to Miocene of South Pacific (3)

• Oligocene of Antarctica (1), Antigua and Barbuda (4), Indian Ocean (1), Mexico (2), Puerto Rico (3), South Pacific (11), United States (1: Alabama)

• H. alabamensis HOZ of South Pacific (5)

• Eocene to Oligocene of South Pacific (4)

• Eocene of Bangladesh (5), Hungary (1), New Zealand (1), Pakistan (3), South Pacific (10), United States (3: Alabama, Louisiana, Mississippi)

• Paleocene of Indian Ocean (3), Trinidad and Tobago (5), Tunisia (1), United States (2: Missouri, Texas)

• Cretaceous of France (1), Saudi Arabia (1), South Atlantic (1)

Total: 170 collections including 240 occurrences