• Miocene of United States (3: Nebraska, Texas collections)

• Oligocene of United States (1: South Carolina)

• Eocene of France (1), Romania (1), United States (4: Utah, Wyoming)

• Paleocene of Canada (2: Alberta, Saskatchewan), Spain (1), United States (13: Colorado, Montana, New Mexico, Wyoming)

• Cretaceous of Argentina (33), Brazil (3), Canada (8: Alberta, Nunavut), Colombia (1), Egypt (1), France (13), Hungary (3), India (1), Libya (1), Mexico (7), Morocco (1), Niger (1), Romania (1), the Russian Federation (2), Spain (8), Sudan (1), Sweden (1), Syria (1), United States (89: Arizona, Colorado, Mississippi, Missouri, Montana, Nevada, New Jersey, New Mexico, North Carolina, North Dakota, Oklahoma, South Carolina, Texas, Utah, Wyoming), Uzbekistan (3)

• Jurassic to Cretaceous of South Africa (1)

Total: 206 collections including 211 occurrences