There are 7 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 13204 | M. Foote | Diamphidiocystis-Bucanopsis Community Of the Brainard Formation Richmondian - Ordovician 5 - Iowa | Frest et al. (1999) |
| 23238 | S. Holland | Brainard Shale Ostracodes of Iowa Richmondian - Ordovician 5 - Iowa | Swain (1987) |
| 23534 | S. Holland | Brainard Shale Echinoderms, Upper Mississippi Valley Richmondian - Ordovician 5 - Illinois, Iowa | Kolata et al. (1987) |
| 23786 | S. Holland | Brainard Shale Cephalopods, Illinois, Iowa, Wisconsin Richmondian - Ordovician 5 - Illinois, Iowa, Wisconsin | Catalani (1987) |
| 192102 | P. Wagner | Tributary to Otter Creek. Southeast quarter of northwest quarter of section 30 Richmondian - Ordovician 5 - Iowa | Ladd (1929) |
| 192092 | P. Wagner | Southeast quarter of Section 25, Auburn Township Richmondian - Ordovician 5 - Iowa | Wang (1949) |
| 219794 | P. Wagner | Section 16. Near Preston Richmondian - Ordovician 5 - Iowa | Ladd (1929) |