Amniota
Distribution:
• Eocene of France (1 collection)
• Cretaceous of United States (1: Montana)
• Jurassic of Kyrgyzstan (1), United States (1: Utah)
• Triassic of the United Kingdom (1), United States (1: North Carolina)
• Permian of United States (3: Oklahoma)
• Carboniferous of the Czech Republic (1), United States (2: Illinois, Kansas)
Total: 12 collections each including a single occurrence