• Cretaceous of Argentina (19 collections), Australia (12), Bolivia (7), Brazil (1), Canada (46: Alberta, British Columbia, Saskatchewan), China (4), France (4), Germany (1), Italy (2), Japan (2), Kazakhstan (4), Mexico (3), Mongolia (19), Romania (1), the Russian Federation (3), Spain (9), the United Kingdom (10), United States (54: Colorado, Idaho, Maryland, Mississippi, Montana, New Jersey, New Mexico, North Dakota, Texas, Utah, Wyoming), Uzbekistan (3)

• Jurassic to Cretaceous of Bolivia (1)

• Jurassic of China (1), France (1), Mongolia (2), Portugal (1), the United Kingdom (1), United States (7: Colorado, New Mexico, Wyoming)

Total: 218 collections including 221 occurrences