These fossils are horn coral. Horn coral is an extinct order of coral named after its conical horn-like appearance. The corals range in size from 4cm x 2cm to 3cm x 1.5cm.
- Catalog Number:
- 404598
- Object/Specimen Description:
- Specimen Count:
- 3
- Locality:
- US High Plains and Rocky Mountains (ID, MT, ND, SD, WY, CO)
- Collecting Locality:
- North America, United States, Montana
- Upper Level Taxonomy:
- Animalia, Cnidaria, Anthozoa, Hexacorallia, Rugosa