There are 3 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 3294 | A. Miller | Keokuk County (= Lower Verdi Member, St. Louis Fm., Keokuk Co., IO) Chesterian - Carboniferous 2-3 - Iowa | Witzke et al. (1990) |
| 3309 | A. Miller | Wassonville Fm., southeastern Iowa Tournaisian - Carboniferous 1 - Iowa | Laudon (1931) |
| 5933 | J. Alroy | Unspecified in Iowa Kinderhookian - Carboniferous 1 - Iowa | Stainbrook (1950) |