• Quaternary of Canada (1: Quebec collection), United States (23: Florida, Georgia, Kansas, South Dakota, Texas)

• Blancan of United States (2: Florida)

• Hemphillian of United States (1: Florida)

• Miocene of Germany (1), Panama (1), United States (24: Florida, Kansas, Louisiana, Maryland, Nebraska, North Carolina, Texas, Virginia)

• Oligocene of United States (2: Mississippi, South Carolina)

• Eocene of Belgium (1), Canada (4: Northwest Territories, Northwest Territory, Saskatchewan), France (4), Germany (1), Pakistan (1), Romania (1), the United Kingdom (7), United States (86: Alabama, Arkansas, California, Colorado, Florida, Georgia, Mississippi, Nebraska, North Dakota, South Dakota, Texas, Utah, Virginia, Wyoming)

• Paleocene to Eocene of India (1)

• Paleocene of Bolivia (1), Canada (4: Alberta, Saskatchewan), India (1), Spain (1), United States (34: Colorado, Montana, New Jersey, New Mexico, North Dakota, South Carolina, Utah, Wyoming)

• Cretaceous to Paleogene of India (1), United States (1: New Jersey)

• Cretaceous of Algeria (3), Argentina (36), Austria (2), Bolivia (1), Brazil (7), Canada (80: Alberta, Nunavut, Saskatchewan), Colombia (1), Egypt (1), France (17), Germany (1), Hungary (3), India (14), Libya (1), Madagascar (2), Mexico (10), Morocco (5), Niger (2), Portugal (2), Romania (3), the Russian Federation (2), Spain (17), Sudan (1), Sweden (1), Syria (1), the United Kingdom (1), United States (237: Alabama, Arizona, Arkansas, Colorado, Delaware, Georgia, Kansas, Maryland, Mississippi, Missouri, Montana, Nevada, New Jersey, New Mexico, North Carolina, North Dakota, Oklahoma, South Carolina, South Dakota, Texas, Utah, Wyoming), Uzbekistan (4)

• Jurassic to Cretaceous of South Africa (1)

Total: 660 collections including 706 occurrences