Wikimedi'Òc

Leptaena fossil brachiopod in fossiliferous limestone (Middle Devonian; gravel bar clast, Olentangy River, Columbus, Ohio, USA) 1 (28934324463).jpg - Ser Amantio di Nicolao

Differentially eroded siltstone (gravel bar clast, Licking River, near Black Hand Gorge, Licking County, Ohio, USA).jpg - Ser Amantio di Nicolao