There are 4 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 23804 | S. Holland | Sardeson Collection, Dunleith Formation, Sherwood Member, Illinois and Iowa Shermanian - Ordovician 4-5 - Illinois, Iowa | Catalani (1987) |
| 23805 | S. Holland | Sardeson Collection, Dunleith Formation, Wall Member, Illinois and Iowa Shermanian - Ordovician 4-5 - Illinois, Iowa | Catalani (1987) |
| 23806 | S. Holland | Sardeson Collection, Dunleith Formation, Wyota Member, Illinois and Iowa Shermanian - Ordovician 4-5 - Illinois, Iowa | Catalani (1987) |
| 23807 | S. Holland | Sardeson Collection, Wise Lake Formation, Sinsinawa Member, Illinois and Iowa Edenian - Ordovician 5 - Illinois, Iowa | Catalani (1987) |