Submitted by: ummp invertebrate paleontology
            
            Taxon:  Pleurodictyum plana
            
            Submit date: 2008-12-03
            
            Location (approximate): Sylvania, Lucas, OH
            
            Stratigraphy: Silica Formation
            
            Age: Erian (Middle Devonian)
            
            Submitter notes: These specimens are hypotypes. The large one is 1.7 cm across.