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

See also

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.
  • USGS. "U.S. Geologic Names Lexicon ("Geolex")". Retrieved 8 November 2017.
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