Wikimedi'Òc

Petroxestes pera Ordovician Ohio.jpg - Slick-o-bot

Bird tracks on sand-and-pebble beach (southern shore of Kelleys Island, Lake Erie, Ohio, USA) 3 (48655704293).jpg - Ser Amantio di Nicolao

Bird tracks on sand-and-pebble beach (southern shore of Kelleys Island, Lake Erie, Ohio, USA) 2 (48655705938).jpg - Ser Amantio di Nicolao

Bird tracks on sand-and-pebble beach (southern shore of Kelleys Island, Lake Erie, Ohio, USA) 1 (48656045216).jpg - Ser Amantio di Nicolao

Bird tracks on sand-and-pebble beach (southern shore of Kelleys Island, Lake Erie, Ohio, USA) 4 (48656075611).jpg - Ser Amantio di Nicolao

Pyrite-filled burrows in sandstone (Lower Mississippian; Rt. 35 roadcut, northeast of Rittenours, Ohio, USA) (40877783792).jpg - Ser Amantio di Nicolao