List of fossiliferous stratigraphic units in Texas

This article contains a list of fossil-bearing stratigraphic units in the state of Texas, U.S.

Sites 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 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 Tahoka Formation Pleistocene 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/Fort 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