There are 19 matches

Collection Authorizer Collection name Reference
356J. Sepkoski Basal Maquoketa fm., basal Richmondian Richmondian - Ordovician 5 - Iowa Bretsky and Bermingham (1970)
23752S. Holland Pecatonica Formation Cephalopods, Illinois, Iowa, Wisconsin Blackriveran - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23753S. Holland Mifflin Formation Cephalopods, Illinois, Iowa, Wisconsin Blackriveran - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23756S. Holland Grand Detour Formation Cephalopods, Illinois, Iowa, Wisconsin Blackriveran - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23757S. Holland Nachusa Formation Cephalopods, Illinois, Iowa, Wisconsin Blackriveran - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23758S. Holland Quimbys Mill Formation Cephalopods, Illinois, Iowa, Wisconsin Blackriveran - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23761S. Holland Spechts Ferry Formation Cephalopods, Illinois, Iowa, Wisconsin Blackriveran/Rocklandian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23762S. Holland Guttenberg Formation Cephalopods, Illinois, Iowa, Wisconsin Rocklandian/Kirkfieldian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23766S. Holland Ion Formation, Buckhorn Member Cephalopods, Illinois, Iowa, Wisconsin Kirkfieldian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23767S. Holland Ion Formation, St. James Member Cephalopods, Illinois, Iowa, Wisconsin Kirkfieldian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23768S. Holland Dunleith Formation, Beecher Member Cephalopods, Illinois, Iowa, Wisconsin Shermanian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23769S. Holland Dunleith Formation, Eagle Point Member Cephalopods, Illinois, Iowa, Wisconsin Shermanian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23770S. Holland Dunleith Formation, Fairplay Member Cephalopods, Illinois, Iowa, Wisconsin Shermanian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23771S. Holland Dunleith Formation, Mortimer Member Cephalopods, Illinois, Iowa, Wisconsin Shermanian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23773S. Holland Dunleith Formation, Rivoli Member Cephalopods, Illinois, Iowa, Wisconsin Shermanian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23775S. Holland Dunleith Formation, Sherwood Member Cephalopods, Illinois, Iowa, Wisconsin Shermanian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23776S. Holland Dunleith Formation, Wall Member Cephalopods, Illinois, Iowa, Wisconsin Shermanian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23777S. Holland Dunleith Formation, Wyota Member Cephalopods, Illinois, Iowa, Wisconsin Shermanian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)
23778S. Holland Wise Lake Formation, Sinsinawa Member Cephalopods, Illinois, Iowa, Wisconsin Edenian - Ordovician 4 - Illinois, Iowa, Wisconsin Catalani (1987)

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