Sphenodontia
Distribution:
• Jurassic to Cretaceous of Morocco (3 collections), South Africa (1)
• Jurassic of Portugal (1), the United Kingdom (6), United States (6: Arizona, Colorado, Wyoming)
• Triassic to Jurassic of United States (1: Utah)
• Triassic of Greenland (2), India (1), Switzerland (2), the United Kingdom (3), United States (4: Texas)
Total: 30 collections including 31 occurrences