• Paleocene of Canada (1: Alberta collection)

• Cretaceous of Cameroon (1), Canada (7: Alberta), France (1), India (1), Mongolia (1), Peru (1), Spain (3), United States (32: Montana, New Mexico, North Dakota, South Dakota, Texas, Utah, Wyoming), Uzbekistan (4)

• Jurassic of United States (2: Utah, Wyoming)

• Triassic of Spain (1)

Total: 55 collections including 56 occurrences