Submitted by: ummp invertebrate paleontology
            
            Taxon:  Cylindrophyllum hindshawi
            
            Submit date: 2009-01-07
            
            Location (approximate): Alpena, Alpena, MI
            
            Stratigraphy: Potter Farm Formation
            
            Age: Erian (Middle Devonian)
            
            Submitter notes: This specimen is a hypotype.  It is 10 cm across.