Submitted by: Pat Rutkowski
            
            Taxon:  Halysites catenularia micropors
            
            Submit date: 2007-09-25
            
            Location (approximate): Trout Lake, Chippewa, MI
            
            Stratigraphy: Fiborn Formation
            
            Age: Niagaran (Middle Silurian)
            
            Submitter notes: Middle Silurian Anthozoan coral from the Upper Peninsula