List of fossiliferous stratigraphic units in Texas

Group or Formation	Period	Notes
Admiral Formation	Permian
Aguja Formation	Cretaceous
Alacran Mountain Formation	Permian
Albany Group/Lueders Formation	Permian
Albany Group/Waggoner Ranch Formation	Permian
Aleman Formation	Ordovician
Altuda Formation	Permian
Anacacho Limestone	Cretaceous
Anahuac Formation	Paleogene
Annona Chalk	Cretaceous
Arcadia Park Shale	Cretaceous
Archer City Formation	Permian
Arroyo Formation	Permian
Austin Formation	Cretaceous
Austin Chalk	Cretaceous
Austin Group/Atco Formation	Cretaceous
Austin Group/Ector Formation	Cretaceous
Austin Group/Ector Chalk	Cretaceous
Austin Group/Gober Formation	Cretaceous
Austin Group/Gober Chalk	Cretaceous
Austin Group/Pflugerville Formation	Cretaceous
Austin Group/Roxton Formation	Cretaceous
Banta Shut Formation	Neogene
Barnett Formation	Carboniferous
Barnett Shale	Carboniferous
Bead Mountain Formation	Permian
Beaumont Formation	Pleistocene
Bell Canyon Formation	Permian
Belle Plains Formation	Permian
Bend Group/Smithwick Formation	Carboniferous
Benevides Formation	Cretaceous
Bishop Cap Formation	Carboniferous
Black Peaks Formation	Paleogene
Blaine Formation	Permian
Blanco Formation	United States
Blossom Sand	Cretaceous
Bone Spring Formation	Permian
Bone Spring Limestone	Permian
Boquillas Formation	Cretaceous
Brad Formation	Carboniferous
Bridwell Formation	Neogene
Briggs Formation	Permian
Brushy Canyon Formation	Permian
Buda Limestone	Cretaceous
Caballos Novaculite	Late Devonian to Carboniferous (Mississippian)
Caddo Creek Formation	Carboniferous
Camp Creek Formation	Permian
Camp Rice Formation	United States
Canoe Formation	Paleogene
Canyon Group/Caddo Creek Formation	Carboniferous
Canyon Group/Graford Formation	Carboniferous
Canyon Group/Palo Pinto Formation	Carboniferous
Canyon Group/Winchell Formation	Carboniferous
Canyon Group/Wolf Mountain Formation	Carboniferous
Canyon Group/Wolf Mountain Shale	Carboniferous
Capitan Formation	Permian
Capote Mountain Tuff	Paleogene
Capps Formation	Carboniferous
Catahoula Formation	Paleogene
Cathedral Mountain Formation	Permian
Cerro Alto Limestone	Permian
Chaffin Formation	Carboniferous
Chambers Tuff	Paleogene
Chappel Limestone	Carboniferous
Cherry Canyon Formation	Permian
Chinle Group/Dockum Group	Triassic
Chinle Group/Tecovas Formation	Triassic
Chisos Formation	Paleogene
Chispa Summit Formation	Cretaceous
Cibolo Formation	Permian
Cisco Group/Bluff Creek Formation	Carboniferous
Cisco Group/Graham Formation	Carboniferous
Cisco Group/Pueblo Formation	Permian
Cisco Group/Putnam Formation	Permian
Claiborne Formation	Paleogene
Claiborne Group/Cook Mountain Formation	Paleogene
Claiborne Group/Crockett Formation	Paleogene
Claiborne Group/Reklaw Formation	Paleogene
Claiborne Group/Stone City Formation	Paleogene
Claiborne Group/Weches Formation	Paleogene
Clarendon Beds	Neogene
Clear Fork Formation	Permian
Clear Fork Group/Arroyo Formation	Permian
Clear Fork Group/Vale Formation	Permian
Clear Fork Group/Choza Formation	Permian
Clear Fork Group/Lueders Formation	Permian
Clear Fork Group/Vale Formation	Permian
Clyde Formation	Permian
Coetas Formation	Neogene
Coleman Junction Formation	Permian
Colmena Tuff	Paleogene
Comanche Formation	Cretaceous
Comanche Peak Limestone	Cretaceous
Comanche Group/Paw Paw Formation	Cretaceous
Concha Formation	Permian
Cook Mountain Formation	Paleogene
Corsicana Marl	Cretaceous
Cow Creek Limestone (Cow Creek Formation)	Cretaceous
Crockett Formation	Paleogene
Cutoff Formation	Permian
Cutter Dolomite	Ordovician
Del Rio Clay	Cretaceous
Delaho Formation	Neogene
Delaware Mountain Formation	Permian
Denton Formation	Cretaceous
Devil's Graveyard Formation	Paleogene
Devils River Limestone	Cretaceous
Dockum Formation	Triassic
Dockum Group/Camp Springs Formation	Triassic
Dockum Group/Colorado City Formation	Triassic
Dockum Group/Cooper Canyon Formation	Triassic
Dockum Group/Santa Rosa Sandstone	Triassic
Dockum Group/Tecovas Formation	Triassic
Dockum Group/Trujillo Formation	Triassic
Dog Creek Formation	Permian
Eagle Ford Formation	Cretaceous
Eagle Ford Group/Britton Formation	Cretaceous
Eagle Ford Shale	Cretaceous
Eagle Ford Group/Britton Formation	Cretaceous
Eagle Ford Group/Lake Waco Formation	Cretaceous
Eagle Ford Group/Tarrant Formation	Cretaceous
East Mountain Shale	Carboniferous
Edwards Limestone	Cretaceous
Edwards Group/Segovia Formation	Cretaceous
El Paso Formation	Ordovician
El Paso Group/Florida Formation	Ordovician
El Paso Group/McKelligon Canyon Formation	Ordovician
El Paso Group/Padre Formation	Ordovician
El Paso Group/Scenic Drive Formation	Ordovician
El Picacho Formation	Cretaceous
Ellenburger Group	Ordovician
Ellenburger Group/Honeycut Formation	Ordovician
Ellenburger Group/Tanyard Formation	Ordovician
Escondido Formation	Cretaceous
Fayette Sandstone	Paleogene
Fleming Formation	Neogene
Fort Hancock Formation	Pleistocene
Fort Peña Formation	Ordovician
Fort Worth Limestone	Cretaceous
Fredericksburg Group/Comanche Peak Limestone	Cretaceous
Fredericksburg Group/Edwards Limestone	Cretaceous
Fredericksburg Group/Goodland Formation	Cretaceous
Fredericksburg Group/Stuart City Formation	Cretaceous
Fredericksburg Group/Walnut Formation	Cretaceous
Fredericksburg Group/Glen Rose Limestone	Cretaceous
Fredericksburg Group/Paluxy Formation	Cretaceous
Gaptank Formation	Carboniferous
Glen Rose Formation	Cretaceous
Goliad Formation	Neogene
Goodland Limestone	Cretaceous
Goodnight Beds	Neogene
Gorman Formation	Ordovician
Graford Formation	Carboniferous
Graham Formation	Carboniferous
Graham Group/Gunsight Formation	United States
Graham Group/Jacksboro Limestone	Carboniferous
Graham Group/Wayland Formation	United States
Grayson Formation	Cretaceous
Grayson Marl	Cretaceous
Gulf Group/Woodbine Formation	Cretaceous
Hammett Formation	Cretaceous
Hammett Shale	Cretaceous
Hannold Hill Formation	Paleogene
Harpersville Formation	Carboniferous
Helms Formation	Carboniferous
Hess Formation	Permian
Hogeye Tuff	Paleogene
Honeycut Formation	Ordovician
Houy Formation	Devonian to Carboniferous (Mississippian)
Hueco Formation	Permian
Hueco Formation	Permian
Hueco Formation	Permian
Hueco Canyon Formation	Permian
Jackson Formation	Paleogene
Jackson Group/Wellborn Formation	Paleogene
Javelina Formation	Cretaceous
Kamp Ranch Limestone	Cretaceous
Kemp Clay	Cretaceous
Keys Valley Marl Member	Cretaceous
Kiamichi Shale (Kiamichi Formation)	Cretaceous
Kincaid Formation	Paleogene
Lake Waco Formation	Cretaceous
Laredo Formation	Paleogene
Lazy Bend Formation	Carboniferous
Lenox Hills Formation	Permian
Lone Camp Group/East Mountain Formation	Carboniferous
Love Formation	United States
Lueders Formation	Permian
Magdalen Limestone	Carboniferous
Magdalena Formation	Carboniferous to Permian (?)
Main Street Limestone	Cretaceous
Malone Formation	Late Jurassic
Mancos Shale	Cretaceous
Marathon Formation	Ordovician
Marble Falls Formation	Carboniferous
Midway Formation	Paleogene
Midway Group/Anacacho Limestone	Cretaceous
Midway Group/Kincaid Formation	Paleogene
Midway Group/Shark River Formation	Paleogene
Midway Group/Wills Point Formation	Paleogene
Millsap Lake Group/Lazy Bend Formation	Carboniferous
Mineral Wells Formation	Carboniferous
Mingus Formation	Carboniferous
Montoya Group	Ordovician
Montoya Group/Aleman Formation	Ordovician
Montoya Group/Cutter Formation	Ordovician
Montoya Group/Second Value Formation	Ordovician
Moore Hollow Group/Wilberns Formation	Cambrian
Moran Formation	Permian
Nacatoch Sand	Cretaceous
Navarro Formation	Cretaceous
Navarro Group/Kemp Clay	Cretaceous
Navarro Group/Neylandville Marl	Cretaceous
Neal Ranch Formation	Early Permian
Neylandville Marl	Cretaceous
Oakville Formation	Neogene
Obregon Formation	Carboniferous
Ogallala Formation	Neogene
Ojinaga Formation	Cretaceous
Ozan Formation	Cretaceous
Paluxy Formation	Cretaceous
Pease River Group/San Angelo Formation	Permian
Pease River Group/San Angelo Group/Blaine Formation	Permian
Pecan Gap Chalk	Cretaceous
Pen Formation	Cretaceous
Pepper Shale	Cretaceous
Pillar Bluff Limestone	Devonian
Pruett Formation	Paleogene
Pueblo Formation	Carboniferous
Putnam Formation	Permian
Quartermaster Formation	Permian
Rawls Formation	Neogene
Reklaw Formation	Paleogene
Riley Formation	Cambrian
Rita Blanca Formation	Pleistocene
Road Canyon Formation	Permian
Ross Mine Formation	Permian
Rustler Formation	Permian
Sabinetown Bluff Formation	Paleogene
Salesville Formation	Carboniferous
San Andres Formation	Permian
San Carlos Formation	Cretaceous
Second Value Dolomite	Ordovician
Sedwick Formation	Permian
Seguin Formation	Paleogene
Selman Formation	Paleogene
Seymour Formation	Pleistocene
Shuler Formation	Late Jurassic
Skinner Mountain Formation	Permian
Skinner Ranch Formation	Permian
Sligo Formation	Cretaceous
Smithwick Formation	Carboniferous
Starcke Limestone	Silurian
Stone City Formation	Paleogene
Strawn Formation	Carboniferous
Strawn Group/Grindstone Formation	Carboniferous
Strawn Group/Millsap Lake Formation	Carboniferous
Sullivan Peak Formation	Permian
Talpa Formation	Permian
Tanyard Formation	Ordovician
Taylor Marl	Cretaceous
Taylor Group/Sprinkle Formation	Cretaceous
Taylor Group/Wolfe City Formation	Cretaceous
Taylor Group/Wolfe City Group/Sprinkle Formation	Cretaceous
Tecovas Formation	Triassic
Tesnus Formation	Carboniferous
Thrifty Formation	Carboniferous
Torcer Formation	Cretaceous
Tornillo Formation	Paleogene, Cretaceous
Tornillo Group/Javelina Formation	Cretaceous
Travis Peak Formation	Cretaceous
Trinity Formation	Cretaceous
Trinity Group/Antlers Formation	Cretaceous
Trinity Group/Bluff Mesa Formation	Cretaceous
Trinity Group/Cuchillo Formation	Cretaceous
Trinity Group/Glen Rose Formation	Cretaceous
Trinity Group/Glen Rose Group/Paluxy Formation	Cretaceous
Trinity Group/Hensel Sand	Cretaceous
Trinity Group/Paluxy Formation	Cretaceous
Trinity Group/Twin Mountains Formation	Cretaceous
Tule Formation	Pleistocene
Twin Mountains Formation	Cretaceous
Vale Formation	Permian
Valera Shale	Permian
Vidrio Formation	Permian
Vieja Formation	Paleogene
Waggoner Ranch Formation	Permian
Waldrip Formation	Carboniferous
Walnut Formation	Cretaceous
Washita Formation	Cretaceous
Washita Group/Del Rio Formation	Cretaceous
Washita Group/Denison Formation	Cretaceous
Washita Group/Denton Formation	Cretaceous
Washita Group/Duck Creek Formation	Cretaceous
Washita Group/Forth Worth Formation	Cretaceous
Washita Group/Grayson Marl	Cretaceous
Washita Group/Main Street Limestone	Cretaceous
Washita Group/Pawpaw Formation	Cretaceous
Washita Group/Weno Limestone	Cretaceous
Weches Formation	Paleogene
Weno Formation	Cretaceous
Whitehorse Formation	Permian
Wichita Formation	Permian
Wichita Group/Admiral Formation	Permian
Wichita Group/Archer City Formation	Permian
Wichita Group/Belle Plains Formation	Permian
Wichita Group/Clyde Formation	Permian
Wichita Group/Lueders Formation	Permian
Wichita Group/Moran Formation	Permian
Wichita Group/Nocona Formation	Permian
Wichita Group/Petrolia Formation	Permian
Wichita Group/Waggoner Ranch Formation	Permian
Wichita Group/Putnam Formation	Permian
Wichita Group/Waggoner Ranch Formation	Permian
Wilberns Formation	Cambrian
Wilcox Group/Rockdale Formation	Paleogene
Wills Point Formation	Paleogene
Winchell Formation	Carboniferous
Wolf Mountain Formation	Carboniferous
Wolfe City Formation	Cretaceous
Woodbine Formation	Cretaceous
Woods Hollow Formation	Middle Ordovician
Word Formation	Permian
Yegua Formation	Paleogene
Yucca Formation	Cretaceous

See also

• Paleontology in Texas

References

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 22 June 2014. {{cite web}}: |author= has generic name (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
• USGS. "U.S. Geologic Names Lexicon ("Geolex")". Retrieved 8 November 2017.