There are 2 matches
Collection | Authorizer | Collection name | Reference |
---|---|---|---|
26692 | M. Foote | Apiocystitinid Association, Llandovery, E Iowa and NW Illinois Rhuddanian - Silurian 1 - Illinois | Frest et al. (1999) |
26770 | M. Foote | Periechocrinus necis-Coelocystis subglobosus Assoc., Racine Fm. (= Reef 813) Wenlock/Ludlow - Silurian 2 - Illinois | Frest et al. (1999) |