There are 5 matches

Collection Authorizer Collection name Reference
23797S. Holland Sardeson Collection, Ion Formation, Buckhorn Member, Illinois and Iowa Kirkfieldian - Ordovician 4 - Illinois, Iowa Catalani (1987)
23798S. Holland Sardeson Collection, Ion Formation, St. James Member, Illinois and Iowa Kirkfieldian - Ordovician 4 - Illinois, Iowa Catalani (1987)
23799S. Holland Sardeson Collection, Dunleith Formation, Beecher Member, Illinois and Iowa Shermanian - Ordovician 4 - Illinois, Iowa Catalani (1987)
23800S. Holland Sardeson Collection, Dunleith Formation, Eagle Point Member, Illinois and Iowa Shermanian - Ordovician 4 - Illinois, Iowa Catalani (1987)
23801S. Holland Sardeson Collection, Dunleith Formation, Fairplay Member, Illinois and Iowa Shermanian - Ordovician 4 - Illinois, Iowa Catalani (1987)

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