• Miocene of United States (1: Massachusetts collection)

• Eocene of United States (4: Alabama, Mississippi, Virginia)

• Paleocene of China (1), United States (2: Alabama, Missouri)

• Cretaceous to Neogene of China (1)

• Cretaceous of Romania (1), United States (5: Missouri, South Carolina)

Total: 15 collections including 16 occurrences