There are 8 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) |
| 23309 | S. Holland | Decorah Shale (Stictopora angularis 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) |
| 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) |