Wikimedi'Òc

Colonial rugose coral in limestone (Columbus Limestone, Middle Devonian; Kelleys Island, Lake Erie, Ohio, USA) 1 (48541256961).jpg - Ser Amantio di Nicolao

Colonial rugose coral in limestone (Columbus Limestone, Middle Devonian; Kelleys Island, Lake Erie, Ohio, USA) 4 (48541412342).jpg - Ser Amantio di Nicolao

Colonial rugose coral in limestone (Columbus Limestone, Middle Devonian; Kelleys Island, Lake Erie, Ohio, USA) 2 (48541267381).jpg - Ser Amantio di Nicolao

Colonial rugose coral in limestone (Columbus Limestone, Middle Devonian; Kelleys Island, Lake Erie, Ohio, USA) 3 (48541413122).jpg - Ser Amantio di Nicolao

Colonial rugose coral in limestone (Columbus Limestone, Middle Devonian; Kelleys Island, Lake Erie, Ohio, USA) 5 (48541411552).jpg - Ser Amantio di Nicolao

Colonial coral (Columbus Limestone, Middle Devonian; abandoned quarry, Kelleys Island, Lake Erie, Ohio, USA) (48644636171).jpg - Ser Amantio di Nicolao