Submitted by: David Thompson
Submit date: 2011-08-14
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Squaw Bay Formation
Age: Senecan (Late Devonian)
Submitter notes: Although noted for nautiloids and especially ammonites, the Squaw Bay formation contains pieces of unknown wood. This is an example of wood preserved in the dense matrix and is about 6 inches long.