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Flint meganodule (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 2 (31241099865).jpg - Ser Amantio di Nicolao

Flint meganodule (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 3 (30873447180).jpg - Ser Amantio di Nicolao

Flint meganodule (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 1 (30873466850).jpg - Ser Amantio di Nicolao

Flint meganodule (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 4 (31205111306).jpg - Ser Amantio di Nicolao

Flint meganodule (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 6 (31126820331).jpg - Ser Amantio di Nicolao

Flint meganodule (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 7 (30873367880).jpg - Ser Amantio di Nicolao

Flint meganodule (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 5 (31241062875).jpg - Ser Amantio di Nicolao

Flint meganodule (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 9.jpg - Ser Amantio di Nicolao

Flint meganodule (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 8.jpg - Ser Amantio di Nicolao