Wikimedi'Òc

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 8 (32501335074).jpg - Ser Amantio di Nicolao

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 11 (33188674322).jpg - Ser Amantio di Nicolao

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 13 (33343950665).jpg - Ser Amantio di Nicolao

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 12 (33303393676).jpg - Ser Amantio di Nicolao

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 7 (32961553960).jpg - Ser Amantio di Nicolao

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 6 (33344051425).jpg - Ser Amantio di Nicolao

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 4 (33216477011).jpg - Ser Amantio di Nicolao

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 5 (32501387204).jpg - Ser Amantio di Nicolao

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 15 (32501265934).jpg - Ser Amantio di Nicolao