These are two fossil spore ferns. They date to the Lower Pennsylvanian subperiod and were found at the Carbondale formation in Illinois. The specimens measure from 7.5 cm - 8 cm long and 3 cm - 3.5 cm wide.
- Catalog Number:
- 52196
- Object/Specimen Description:
- Specimen Count:
- 2
- Precise Locality:
Francis Creek Shale
- Locality:
- US Great Lakes (MN, WI, IL, IN, OH, MI)
- Collecting Locality:
- North America, United States, Illinois, Will County
- Special Instructions:
- Ask a staff person for assistance
- Upper Level Taxonomy:
- Plantae