×
Cone-in-cone limestone (likely an interbed from the Ohio Shale, Upper Devonian; Alum Creek Lake area, Delaware County, Ohio, USA) 1.jpg - Ser Amantio di Nicolao
Cone-in-cone limestone (likely an interbed from the Ohio Shale, Upper Devonian; Alum Creek Lake area, Delaware County, Ohio, USA) 3.jpg - Ser Amantio di Nicolao
❮
❯