There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 23379 | S. Holland | Cummingsville Formation Bryozoans of the Upper Mississippi Valley Kirkfieldian - Ordovician 4-5 - Minnesota, Iowa | Karklins (1987) |
| 169537 | P. Wagner | Near the Agency, Turkey River Shermanian - Ordovician 4-5 - Iowa | Owen (1852) |