Submitted by: John Topor
Taxon: Hercostrophia robusta
Submit date: 2009-02-04
Location (approximate): Sylvania, Lucas, OH
Stratigraphy: Silica Formation
Age: Erian (Middle Devonian)
Submitter notes: These fragile specimens were collected from unit 7 of the Medusa North Quarry. The largest measures 24.2mm x 19.7mm.