There are 22 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 357 | J. Sepkoski | F-231 (= Thaerodonta-Oniella community, Maquoketa Fm.) Maysvillian/Richmondian - Ordovician 5 - Minnesota | Bayer (1967) |
| 23283 | S. Holland | Sardeson Collection, Maquoketa Formation, Clermont Member Maysvillian - Ordovician 5 - Minnesota | Rice and Hedblom (1987) |
| 23235 | S. Holland | Scales Shale, Elgin Member Ostracodes of Iowa Edenian/Maysvillian - Ordovician 5 - Iowa | Swain (1987) |
| 23521 | S. Holland | Scales Shale, Elgin Member Echinoderms, Upper Mississippi Valley (Illinois Iowa) Edenian/Maysvillian - Ordovician 5 - Illinois, Iowa | Kolata et al. (1987) |
| 23524 | S. Holland | Fort Atkinson Limestone Echinoderms, Upper Mississippi Valley (Illinois, Iowa) Maysvillian - Ordovician 5 - Illinois, Iowa | Kolata et al. (1987) |
| 23682 | S. Holland | Scales Shale, Elgin Member Gastropoda and Monoplacophora, Illinois and Iowa Edenian/Maysvillian - Ordovician 5 - Illinois, Iowa | Sloan and Webers (1987) |
| 23783 | S. Holland | Scales Shale, Elgin Member Cephalopods, Illinois, Iowa, Wisconsin Edenian/Maysvillian - Ordovician 5 - Illinois, Iowa, Wisconsin | Catalani (1987) |
| 23785 | S. Holland | Fort Atkinson Limestone Cephalopods, Illinois, Iowa, Wisconsin Maysvillian - Ordovician 5 - Illinois, Iowa, Wisconsin | Catalani (1987) |
| 23810 | S. Holland | Sardeson Collection, Scales Shale, Elgin Member, Illinois and Iowa Edenian/Maysvillian - Ordovician 5 - Illinois, Iowa | Catalani (1987) |
| 26684 | M. Foote | Diamphidiocystis drepanon-Savagella Comm., Orchard Creek Shale, Scales Fm. Richmondian - Ordovician 5 - Illinois | Frest et al. (1999) |
| 183357 | P. Wagner | Winneshiek County Road Exposure Richmondian - Ordovician 5 - Iowa | Howe (1972) |
| 155710 | P. Wagner | Spring Valley (= Ulrich & Scofield Localities) Richmondian - Ordovician 5 - Minnesota | Ulrich and Scofield (1897) |
| 172795 | P. Wagner | Dover Mills Richmondian - Ordovician 5 - Iowa | Ladd (1925) |
| 173365 | B. Kröger | Fort Atkinson, Maquoketa group Richmondian - Ordovician 5 - Iowa | Ulrich (1925) |
| 184440 | P. Wagner | Claremont Maysvillian - Ordovician 5 - Iowa | Goldman (1995) |
| 192085 | P. Wagner | Along Primary Road No. 51, Postville Maysvillian - Ordovician 5 - Iowa | Ladd (1929) |
| 192094 | P. Wagner | Road between Sections 23 & 24, Springfield Township Richmondian - Ordovician 5 - Iowa | Wang (1949) |
| 192095 | P. Wagner | Northeast corner of section 28, Post Township Richmondian - Ordovician 5 - Iowa | Wang (1949) |
| 192096 | P. Wagner | Along East-West Road in southeast quarter of Section 17, Orleans Township Richmondian - Ordovician 5 - Iowa | Wang (1949) |
| 192175 | P. Wagner | F-240. Bed 5 Maysvillian/Richmondian - Ordovician 5 - Minnesota | Bayer (1967) |
| 192901 | P. Wagner | Maquoketa Creek Richmondian - Ordovician 5 - Iowa | Whittington (1971) |
| 192902 | P. Wagner | Beds 11-16, Graf Section Richmondian - Ordovician 5 - Iowa | Whittington (1971) |