There are 3 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 13024 | M. Patzkowsky | Racine Fm, Milwaukee, Hartung Quarry, 34507 - Patzkowsky Wenlock/Silurian - Silurian 2-1-2 - Wisconsin | Watkins (1991) |
| 13075 | M. Patzkowsky | Racine Fm, SE Wisconsin, Ives Quarry - Patzkowsky Wenlock/Silurian - Silurian 2-1-2 - Wisconsin | Watkins (1993) |
| 13107 | M. Patzkowsky | Francey Quarry Wenlock/Silurian - Silurian 2-1-2 - Wisconsin | Watkins (1993) |