Submitted by: David Thompson
            
            Taxon:  Dolatocrinus barrisi, Platyceras conicum
            
            Submit date: 2011-06-09
            
            Location (approximate): Alpena, Alpena, MI
            
            Stratigraphy: Thunder Bay Formation
            
            Age: Erian (Middle Devonian)
            
            Submitter notes: An additional view showing snail attachment to tegmen of crinoid