Markley Formation
Thrifty and Graham Formations, undivided
Archer City Formation
Alluvium
Terrace deposits
Quaternary deposit, undivided
Pueblo Formation
Harpersville Formation
Home Creek Limestone and Colony Creek Shale, undivided
Sedwick and Moran Formations, undivided
Sand sheet deposits
Ranger Limestone and Placid Creek Shale, undivided
Dune sand sheet deposits
Admiral and Coleman Junction Formations, undivided
High gravel deposits
Santa Anna Branch Shale