The Harrodsburg Limestone is a geologic formation, a member of the Sanders Group of Indiana Limestone, of Mississippian age. It was named for Harrodsburg in southern Monroe County, Indiana by T. C. Hopkins and C. E. Siebenthal. It is made up primarily of calcarenite and calcirudite. It also may include some beds of dolomite and shale.
The Leipers Limestone is a geologic formation in Kentucky, Tennessee, Alabama and Georgia. It preserves fossils dating back to the Ordovician Period.
The Laurel Formation, also known as the Laurel Limestone or the Laurel Dolomite, is a geologic formation in Indiana and Kentucky. It preserves fossils dating back to the Silurian period.
The Keokuk Limestone is a geologic formation in Illinois, Iowa and Missouri. It preserves fossils dating back to the Mississippian sub-period.
The Tomstown Dolomite or Tomstown Formation is a geologic formation in Maryland, Pennsylvania, Virginia and West Virginia. It preserves fossils dating to the Cambrian Period.
The Alum Bluff Group is a geologic group in the states of Georgia, Florida, and Alabama. It preserves fossils dating back to the Neogene period.
The Clinchfield Formation is a geologic formation in Georgia. It preserves fossils dating back to the Paleogene period.
The Blue Bluff Formation is a geologic formation in Georgia. It preserves fossils dating back to the Paleogene period.
The Chattahoochee Formation is a geologic formation in Georgia. It preserves fossils dating back to the Paleogene period.
The Gosport Sand is a geologic formation in Georgia, Alabama, and Mississippi. It preserves fossils dating back to the Paleogene period.
The Tallahatta Formation is a geologic formation found on the surface in Alabama, Florida, Georgia, and Mississippi. It is also located in the subsurface of Kentucky. The Tallahatta formation is part of the Claiborne Group and contains four members: the Basic City Shale in Mississippi, the Holy Springs Sand Member in Mississippi, the Meridian Sand Member in Alabama and Mississippi, and the Neshoba Sand Member in Mississippi. It preserves fossils dating back to the Paleogene period, specifically the Eocene.
The Flint River Formation is a geologic formation in Georgia. It preserves fossils dating back to the Paleogene period.
The Jacksonian Formation is a geologic formation in Georgia. It preserves fossils dating back to the Paleogene period.
The Moodys Branch Formation is a geologic formation in Georgia. It preserves fossils dating back to the Paleogene period.
The Oak Grove Formation is a geologic formation in Georgia. It preserves fossils dating back to the Neogene period.
The Conasauga Formation is a geologic formation in Georgia. It preserves fossils dating back to the Cambrian period.
The Satilla Formation is a geologic formation in Georgia, United States. It preserves fossils.
The Lourdes Formation is a geologic formation in Georgia. It preserves fossils dating back to the Ordovician period.
The Burlington Limestone is a geologic formation in Missouri, Iowa and the Midwest region. It preserves fossils dating back to the Mississippian subperiod.
Georgia (U.S. state) 
Florida 
United States 
