Wikimedi'Òc

Outcrop of Upper Ordovician rubbly limestone and shale, southern Indiana.jpg - Animalparty

Waynesville Formation St. Leon IN.jpg - Wilson44691

Limestone (Salem Limestone, Middle Mississippian; Bloomington region, Indiana, USA).jpg - Jsj1771

Limestone (Sisson Member, St. Louis Limestone, Middle Mississippian; Putnam County, Indiana, USA) (34806273141).jpg - Ser Amantio di Nicolao

Brachiopods in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 15 (32623265124).jpg - Ser Amantio di Nicolao

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 18 (32666929083).jpg - Ser Amantio di Nicolao

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 19 (33325053912).jpg - Ser Amantio di Nicolao