There are 18 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 330 | J. Sepkoski | Galena Group, Dunleith Fm., Rivoli Mbr. Trentonian - Ordovician 4-5 - Iowa | Palmer and Palmer (1977) |
| 13204 | M. Foote | Diamphidiocystis-Bucanopsis Community Of the Brainard Formation Richmondian - Ordovician 5 - Iowa | Frest et al. (1999) |
| 13260 | M. Foote | Thaerodonta-Cupulocrinus angustus-Cornulites Community of the Brainard Richmondian - Ordovician 5 - Iowa | Frest et al. (1999) |
| 23795 | S. Holland | Sardeson Collection, Spechts Ferry Formation, Illinois and Iowa Blackriveran/Rocklandian - Ordovician 4-5 - Illinois, Iowa | Catalani (1987) |
| 23796 | S. Holland | Sardeson Collection, Guttenberg Formation, Illinois and Iowa Rocklandian/Kirkfieldian - Ordovician 4-5 - Illinois, Iowa | Catalani (1987) |
| 23797 | S. Holland | Sardeson Collection, Ion Formation, Buckhorn Member, Illinois and Iowa Kirkfieldian - Ordovician 4-5 - Illinois, Iowa | Catalani (1987) |
| 23798 | S. Holland | Sardeson Collection, Ion Formation, St. James Member, Illinois and Iowa Kirkfieldian - Ordovician 4-5 - Illinois, Iowa | Catalani (1987) |
| 23799 | S. Holland | Sardeson Collection, Dunleith Formation, Beecher Member, Illinois and Iowa Shermanian - Ordovician 4-5 - Illinois, Iowa | Rice and Hedblom (1987) |
| 23800 | S. Holland | Sardeson Collection, Dunleith Formation, Eagle Point Member, Illinois and Iowa Shermanian - Ordovician 4-5 - Illinois, Iowa | Catalani (1987) |
| 23801 | S. Holland | Sardeson Collection, Dunleith Formation, Fairplay Member, Illinois and Iowa Shermanian - Ordovician 4-5 - Illinois, Iowa | Catalani (1987) |
| 23802 | S. Holland | Sardeson Collection, Dunleith Formation, Mortimer Member, Illinois and Iowa Shermanian - Ordovician 4-5 - Illinois, Iowa | Catalani (1987) |
| 23803 | S. Holland | Sardeson Collection, Dunleith Formation, Rivoli Member, Illinois and Iowa Shermanian - Ordovician 4-5 - Illinois, Iowa | Catalani (1987) |
| 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) |
| 23810 | S. Holland | Sardeson Collection, Scales Shale, Elgin Member, Illinois and Iowa Edenian/Maysvillian - Ordovician 5 - Illinois, Iowa | Catalani (1987) |
| 23811 | S. Holland | Sardeson Collection, Scales Shale, Clermont Member, Illinois and Iowa Maysvillian - Ordovician 5 - Illinois, Iowa | Catalani (1987) |