These are Ptychodus shark teeth. Ptychodus is a genus of extinct sharks from the Late Cretaceous that ate mollusks. The teeth range is size from 1 cm x 1 cm to 2 cm x 2 cm.
- Catalog Number:
- 51267
- Object/Specimen Description:
- Specimen Count:
- 10
- Locality:
- US High Plains and Rocky Mountains (ID, MT, ND, SD, WY, CO)
- Collecting Locality:
- North America, United States, Wyoming, Crook County
- Upper Level Taxonomy:
- Animalia, Chordata, Vertebrata, Chondrichthyes, Elasmobranchii, Cladodontomorphi, Hybodontiformes, Ptychodontidae