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List of U.S. state fossils

Map showing which states have state fossils (in blue; states without fossils are gray.)

Most American states have made a state fossil designation, in many cases during the 1980s. It is common to designate one species in which fossilization has occurred, rather than a single specimen, or a category of fossils not limited to a single species.

Some states that lack an explicit state fossil have nevertheless singled out a fossil for formal designation as a state dinosaur, rock, gem or stone.

Table of state fossilsEdit

federal district
or territory
Age Common name Binomial
Image Adoption date
Alabama Eocene Basilosaurus whale Basilosaurus cetoides   1984[1]
Alaska Pleistocene Woolly mammoth Mammuthus primigenius  
Arizona Triassic Petrified wood Araucarioxylon arizonicum  
California Pleistocene Saber-toothed cat Smilodon fatalis  
Colorado Jurassic Stegosaurus Stegosaurus armatus   1982-04-28
Connecticut Jurassic Dinosaur tracks Eubrontes giganteus   1991
Delaware Cretaceous Belemnite Belemnitella americana   1996-07-02
District of Columbia Cretaceous "Capitalsaurus"
(state dinosaur)
nomen nudum only   1998
Florida Eocene Agatized coral
(state stone)
Cnidaria, Anthozoa 1979
Georgia Cretaceous
Shark tooth undetermined   1976[2]
Idaho Pliocene Hagerman horse Equus simplicidens  
Illinois Pennsylvanian Tully monster Tullimonstrum gregarium   1989[3]
Kansas Cretaceous Pteranodon and Tylosaurus Pteranodon longiceps and T. kansasensis     2014[4]
Kentucky Ordovician
Brachiopod undetermined   1986[5]
Louisiana Oligocene Petrified palmwood Palmoxylon   1976[6]
Maine Devonian Pertica plant Pertica quadrifaria   1976
Maryland Miocene Rock Ecphora gardnerae
  1984 (name revised, 1994)[7]
Massachusetts Jurassic Dinosaur tracks Eubrontes giganteus  
Michigan Holocene American mastodon Mammut americanum   2002
Mississippi Eocene Basilosaurus
and Zygorhiza
Basilosaurus cetoides
Zygorhiza kochii
Zygorhiza kochii skull
Missouri Pennsylvanian Sea lily Delocrinus missouriensis   1989
Montana Cretaceous Duck-billed dinosaur Maiasaura peeblesorum
Nebraska Pleistocene Woolly mammoth
Columbian mammoth
Imperial mammoth
Mammuthus primigenius
Mammuthus columbi
Mammuthus imperator
Nevada Triassic Ichthyosaur [9] [10] Shonisaurus popularis  
New Jersey Cretaceous Duck-billed dinosaur Hadrosaurus foulkii
New Mexico Triassic Coelophysis Coelophysis bauri  
New York Silurian Sea scorpion Eurypterus remipes   1984
North Carolina Miocene- Pliocene Shark tooth Carcharodon/Carcharocles megalodon 2013[11]
North Dakota Paleocene Shipworm-bored
petrified wood
Teredo petrified wood
Ohio Ordovician Trilobite Isotelus maximus   1985
Oklahoma Jurassic Saurophaganax Saurophaganax maximus  
Oregon Eocene Dawn redwood Metasequoia
Pennsylvania Devonian Trilobite Phacops rana   1988
South Carolina Pleistocene Columbian mammoth Mammuthus columbi   2014[12]
South Dakota Cretaceous Triceratops Triceratops horridus  
Tennessee Cretaceous Bivalve Pterotrigonia thoracica
Texas Cretaceous Paluxysaurus Sauroposeidon
Utah Jurassic Allosaurus Allosaurus fragilis (Utahraptor ostrommaysorum is the state dinosaur of Utah as of 2018)   1988[13]
Vermont Pleistocene Beluga whale (redesignated as state marine fossil in 2014) Delphinapterus leucas   1993[14][15]
Vermont Pleistocene Woolly mammoth (state terrestrial fossil) Mammuthus primigenius   2014[15][16]
Virginia Caenozoic scallop Chesapecten jeffersonius   1993
Washington Pleistocene Columbian mammoth Mammuthus columbi   1998[17]
West Virginia Late Pleistocene Jefferson's ground sloth Megalonyx jeffersonii   2008[18]
Wisconsin Ordovician
Trilobite Calymene celebra   1985[19]
Wyoming Eocene Knightia Knightia spp."   February 18, 1987

See alsoEdit


  1. ^ "Official State of Alabama Fossil". Alabama Emblems, Symbols and Honors. Alabama Department of Archives & History. August 2, 2005. Retrieved March 19, 2007.
  2. ^ "Georgia State Fossil". State Symbols, State Fossil. e-Reference Desk. March 30, 2014. Retrieved March 30, 2014.
  3. ^ Illinois State Symbols, Department of Natural Resources, retrieved May 20, 2019
  4. ^ "List of State Fossils". State Symbols, State Fossil. Fossilera. Retrieved September 1, 2015.
  5. ^ "Kentucky State Symbols". Kentucky Department of Libraries and Archives. March 30, 2007. Archived from the original on January 28, 2011. Retrieved July 2, 2007.
  6. ^ "Louisiana State Fossil". State Symbols, State Fossil. e-Reference Desk. March 8, 2015. Retrieved March 8, 2015.
  7. ^ "Maryland's Official State Fossil Shell". Maryland Geological Survey. Retrieved February 16, 2017.
  8. ^ Fossil whale: State Fossil of Mississippi (PDF), Mississippi Department of Environmental Quality, 1991, retrieved May 9, 2019
  9. ^
  10. ^
  11. ^ "Fossil, Fossilized Teeth of the Megalodon Shark | NCpedia". Retrieved March 17, 2016.
  12. ^ "South Carolina Fossil". WLTX. Retrieved May 28, 2014.
  13. ^ Utah State Fossil - Allosaurus from "Pioneer - Utah's Online Library" page. Retrieved on September 8, 2008
  14. ^ Vermont has both a state terrestrial fossil and a state marine fossil.
  15. ^ a b "Vermont State Terrestrial Fossil". E Reference Desk. Retrieved March 17, 2018.
  16. ^ "Mammoth Tusk Discovered 1865". Brattleboro History. Retrieved March 17, 2018.
  17. ^ WA State Symbols
  18. ^ Manchins signs bills involving snakes, fossils, research into law
  19. ^ "Wisconsin State Symbols". State of Wisconsin. Archived from the original on January 12, 2010. Retrieved December 19, 2011.

External linksEdit

  • [1] List of U.S. state fossils, from National Park Service.