There are 17 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 23123 | S. Holland | Lower Decorah Shale Ostracodes in Minnesota Rocklandian/Shermanian - Ordovician 4-5 - Minnesota | Swain and Cornell (1987) |
| 23124 | S. Holland | Middle Decorah Shale Ostracodes in Minnesota Rocklandian/Shermanian - Ordovician 4-5 - Minnesota | Swain and Cornell (1987) |
| 23148 | S. Holland | Upper Decorah Shale Ostracodes in Minnesota Rocklandian/Shermanian - Ordovician 4-5 - Minnesota | Swain and Cornell (1987) |
| 23174 | S. Holland | Decorah Shale Ostracodes of Minnesota Rocklandian/Shermanian - Ordovician 4-5 - Minnesota | Swain (1987) |
| 23277 | S. Holland | Sardeson Collection, Decorah Shale Rocklandian/Shermanian - Ordovician 4-5 - Minnesota | Rice and Hedblom (1987) |
| 23290 | S. Holland | Decorah Shale at St. Paul, Minnesota Rocklandian/Shermanian - Ordovician 4-5 - Minnesota | Rice (1987) |
| 23309 | S. Holland | Decorah Shale (Stictopora angularis zone) Bryozoans, Upper Mississippi Valley Rocklandian - Ordovician 4-5 - Minnesota, Iowa, Wisconsin, Illinois | Karklins (1987) |
| 23312 | S. Holland | Decorah Shale (Stictopora mutabilis zone) Bryozoans, Upper Mississippi Valley Rocklandian - Ordovician 4-5 - Minnesota, Iowa, Wisconsin, Illinois | Karklins (1987) |
| 23377 | S. Holland | Decorah Shale (Stictopora minima zone) Bryozoans, Upper Mississippi Valley Rocklandian - Ordovician 4-5 - Minnesota, Iowa, Wisconsin, Illinois | Karklins (1987) |
| 23394 | S. Holland | Decorah Shale Crinoids of the Twin Cities Area Rocklandian/Shermanian - Ordovician 4-5 - Minnesota | Brower (1987) |
| 23402 | S. Holland | Decorah Shale Echinoderms, Upper Mississippi Valley Rocklandian/Shermanian - Ordovician 4-5 - Minnesota | Kolata et al. (1987) |
| 23550 | S. Holland | Decorah Shale Pelecypods, Minnesota Rocklandian/Shermanian - Ordovician 4-5 - Minnesota | Pojeta (1987) |
| 23558 | S. Holland | Decorah Shale Gastropoda and Monoplacophora, Minnesota Rocklandian/Kirkfieldian - Ordovician 4-5 - Minnesota | Sloan and Webers (1987) |
| 23708 | S. Holland | Decorah Shale Cephalopods, MInnesota Rocklandian/Kirkfieldian - Ordovician 4-5 - Minnesota | Catalani (1987) |
| 89042 | B. Kröger | Decorah (= Upper Mississippi Valley) Blackriveran/Kirkfieldian - Ordovician 4-5 - Iowa | Flower (1952) |
| 167609 | B. Kröger | near Fountain, Phylloporina Bed Mohawkian - Ordovician 4-5 - Minnesota | Bassler (1911) |
| 167610 | B. Kröger | near Fountain, Decorah Shale Blackriveran - Ordovician 4-5 - Minnesota | Bassler (1911) |