List of fossiliferous stratigraphic units in California

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

Sites Group or Formation Period Notes Al Rose Formation Ordovician Altamira Shale Neogene Antelope Valley Limestone Ordovician Arvison Formation Triassic Asuncion Group/Chico Formation Cretaceous Asuncion Group/Forbes Shale Cretaceous Asuncion Group/Funks Shale Cretaceous Asuncion Group/Moreno Formation Cretaceous Asuncion Group/Ragged Valley Shale Cretaceous Avawatz Formation Neogene Aztec Sandstone Jurassic Badger Flat Formation Ordovician Baird Formation Carboniferous Barrel Spring Formation Ordovician Barstow Formation Neogene Battery Formation Bautista Formation Bedrock Spring Formation Neogene Bird Spring Formation Permian, Carboniferous Bonanza King Formation Cambrian Bopesta Formation Neogene Bragdon Formation Carboniferous Branch Canyon Formation Neogene Brawley Formation Briones Formation Neogene Brock Shale Triassic Budden Canyon Formation Cretaceous Cache Formation Cajon Valley Beds Formation Neogene Caliente Formation Neogene Campito Formation Cambrian Capay Formation Paleogene Capistrano Formation Neogene Carrara Formation Cambrian Chanac Formation Neogene Chatsworth Formation Cretaceous Chico Formation Cretaceous Chico Group/Moreno Formation Cretaceous Chloropagus Formation Neogene Conglomerate Mesa Formation Permian Copper Canyon Formation Neogene Coso Formation Neogene Crowder Formation Neogene Darwin Canyon Formation Permian Debris Dam Formation Cretaceous Deep Spring Formation Cambrian Dekkas Formation Permian Delmar Formation Paleogene Diablo Formation Neogene Diligencia Formation Disaster Peak Formation Neogene Domengine Formation Paleogene Dove Spring Formation Neogene Drakes Bay Formation Neogene Ely Springs Dolomite Ordovician Etchegoin Formation Neogene Falor Formation Fernando Formation Neogene Forbes Formation Cretaceous Foreman Formation Jurassic Franciscan Formation Jurassic Freeman Silt Formation Neogene Friars Formation Paleogene Funks Formation Cretaceous Gazelle Formation Silurian Goler Formation Paleogene Goodhue Formation Permian Goodwin Formation Ordovician Great Valley Formation Cretaceous Great Valley Group/Antelope Shale Cretaceous Great Valley Group/Budden Canyon Formation Cretaceous Great Valley Group/Crack Canyon Formation Cretaceous Great Valley Group/Gravelly Flat Formation Cretaceous Great Valley Group/Lodoga Formation Cretaceous Great Valley Group/Moreno Formation Cretaceous Great Valley Group/Stony Creek Formation Jurassic Green Valley Formation Neogene Gregg Ranch Formation Ordovician Hardgrave Formation Jurassic Harkless Formation Cambrian Harold Formation Hector Formation Neogene Hidden Valley Dolomite Devonian Hinchman Formation Jurassic Hookton Formation Hornbrook Formation Cretaceous Horned Toad Formation Neogene Horseshoe Gulch Formation Ordovician Horseshoe Gulch unit Formation Ordovician Hosselkus Formation Triassic Hosselkus Limestone Triassic Hungry Valley Formation Neogene Imperial Formation Neogene Imperial Group/Deguynos Formation Neogene Jalama Formation Cretaceous Jewett Sand Formation Neogene, Paleogene Joaquin Formation Cretaceous Josephine Formation Jurassic Juncal Formation Paleogene Kangaroo Creek Formation Devonian, Silurian, Ordovician Kangaroo Ranch Formation Ordovician Kern River Formation Neogene Kern River Beds Formation Neogene Kramer Beds Formation Neogene Kreyenhagen Formation Paleogene Kreyenhagen Shale Paleogene La Habra Formation La Jolla Formation Paleogene Ladd Formation Cretaceous Ladera Sandstone Neogene Laguna Seca Formation Paleogene, Cretaceous Lake Mathews Formation Neogene Latham Shale Cambrian Livermore Gravels Formation Neogene Llajas Formation Paleogene Locatelli Formation Paleogene Lodo Formation Paleogene Lomita Marl Formation Lompico Sandstone Neogene Lower Arkose Unit Formation Neogene Manix Formation Martinez Formation Paleogene Mazourka Formation Ordovician McCloud Limestone Permian, Carboniferous Meganos Formation Paleogene Meganos C Formation Paleogene Mehrten Formation Neogene Merced Formation Neogene Merhten Formation Neogene Mint Canyon Formation Neogene Mission Valley Formation Paleogene Modello Formation Neogene Modelo Formation Neogene Modin Formation Triassic Moenkopi Formation Triassic Monola Formation Cambrian Monterey Formation Neogene Monterey Group/Claremont Shale Neogene Montezuma Formation Pleistocene Montgomery Creek Formation Paleogene Montgomery Limestone Ordovician Moraga Formation Neogene Moreno Formation Cretaceous Moreno Grande Formation Cretaceous Mormon Formation Jurassic MR Caliente Formation Neogene Mt. Eden Formation Neogene Mule Spring Limestone Cambrian Mulholland Formation Neogene Neroly Formation Neogene Niguel Formation Neogene Nosoni Formation Permian NS Caliente Formation Neogene Oclese Sand Formation Neogene Ocotillo Formation Ono Formation Cretaceous Orinda Formation Neogene Oro Loma Formation Neogene Osbourne Canyon Formation Permian Otay Formation Owens Valley Formation Permian Owens Valley Group/Santa Rosa Flat Formation Permian Pacheco Formation Cretaceous Palm Spring Formation Palos Verdes Formation Panoche Formation Cretaceous Paskenta Formation Cretaceous Paso Robles Formation Neogene Pauba Formation Payton Ranch Limestone Silurian Peace Valley Beds Formation Neogene Petaluma Formation Neogene Pico Formation Neogene Pigeon Point Formation Cretaceous Pinole Tuff Formation Neogene Pismo Formation Neogene Pit Formation Triassic Pleasants Sandstone Cretaceous Plush Ranch Formation Neogene Point Loma Formation Cretaceous Poleta Formation Cambrian Pomerado Conglomerate Formation Paleogene Potem Formation Jurassic Poway Formation Paleogene Puente Formation Neogene Puente Shale Neogene Punchbowl Formation Neogene Purisima Formation Neogene Purisimo Formation Neogene Redding Formation Cretaceous Rincon Formation Neogene, Paleogene Rio Dell Formation Riverbank Formation Robinson Formation Permian Rosario Formation Cretaceous Rosario Group/Cabrillo Formation Cretaceous Rosario Group/Point Loma Formation Cretaceous Round Mountain Silt Formation Neogene Saline Valley Formation Cambrian San Antonio Formation San Benito Gravels San Diego Formation Neogene San Emigdio Formation Paleogene San Francisquito Formation Paleogene, Cretaceous San Joaquin Formation Neogene San Lorenzo Formation Paleogene San Lorenzo Group/Pleito Formation Paleogene San Lorenzo Group/San Emigdio Formation Paleogene San Margarita Sandstone Neogene San Mateo Formation Neogene San Pablo Formation Neogene San Pedro Formation San Pedro Sand Formation San Timoteo Formation Santa Clara Formation Neogene Santa Cruz Mudstone Formation Neogene Santa Margarita Formation Neogene Santa Rosa Flat Formation Permian Santa Rosa Island Formation Santa Susana Formation Paleogene Santiago Formation Paleogene Scripps Formation Paleogene Sespe Formation Neogene, Paleogene Shasta Formation Cretaceous Sierra Blanca Limestone Paleogene Siesta Formation Neogene Silverado Formation Paleogene Sisquoc Formation Neogene Skooner Gulch Formation Neogene St. George Formation Neogene Stadium Conglomerate Formation Paleogene Sweetwater Formation Paleogene Tassajara Formation Neogene Tecopa Lake Beds Formation Tecuya Formation Tejon Formation Paleogene Temblor Formation Neogene, Paleogene Temecula Arkose Formation Thompson Formation Jurassic Tick Canyon Formation Timm's Point Formation Titus Canyon Formation Paleogene Topanga Canyon Formation Neogene Towsley Formation Neogene Tulare Formation Neogene Tuna Canyon Formation Cretaceous Turlock Lake Formation UDC Caliente Formation Neogene Union Wash Formation Triassic Unnamed Formation Paleogene Upper Caliente Formation Neogene Upper Etchegoin Formation Upper Fernando Formation Neogene Upper Mehrten Formation Neogene Valmonte Diatomite Formation Neogene Vaquero Formation Neogene Vaqueros Formation Neogene, Paleogene Vedder Sand Paleogene Volcanopelagic Succession Group/Unit 1 Formation Jurassic Volcanopelagic Succession Group/Unit 2 Formation Jurassic Volcanopelagic Succession Group/Unit 3 Formation Jurassic Waltham Formation Cretaceous Wildcat Formation Neogene Wildcat Group/Rio Dell Formation Neogene Williams Formation Cretaceous Wood Canyon Formation Cambrian, Ediacaran Zabriskie Quartzite Formation Cambrian

See also

Paleontology in California

References