Michael C Hansen

• Comparative Microscopic Dental Anatomy in the Petalodontida
• Earthquakes and seismic risk in Ohio
• Geology of the Hocking Hills State Park region
• Gold in Ohio
• Guide to the geology along U.S. Route 23, between Columbus and Portsmouth
• Landslides in Ohio
• Ohio shale concretions
• The effects of the great New Madrid earthquakes in Ohio
• The Teays River