Wikimedi'Òc

Silicified rugose corals in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 2.jpg - Ɱ

Silicified rugose corals in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 1.jpg - Ɱ

Silicified rugose corals in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 3.jpg - Ɱ

Silicified rugose corals in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 4.jpg - Ɱ

Silicified rugose coral in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 5.jpg - Ɱ

Silicified rugose coral in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 6.jpg - Ɱ