List of U.S. state fossils

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Template:Short description Template:DMCA Most states in the US have designated a state fossil, many during the 1980s. It is common to designate a fossilized species, rather than a single specimen or a category of fossils. State fossils are distinct from other state emblems like state dinosaurs, state stones, state minerals, state gemstones or state rocks and a state may designate one, a few, or all of those. For example, in Arizona, the state stone is turquoise and the state dinosaur is Sonorasaurus thompsoni yet the state fossil is petrified wood.

The two first states to designate a state fossil were Nebraska and North Dakota, both in 1967.

Six states and the District of Columbia as of March 10th, 2026 still lack an explicit state fossil:

Table of state fossils

State
federal district
or territory
Age Common name Binomial
name
Image Year adopted
Alabama Eocene Basilosaurus whale Basilosaurus cetoides
File:Basilosaurus cetoides.jpg
1984[6]
Alaska Pleistocene Woolly mammoth Mammuthus primigenius
File:Elephas primigenius 7.JPG
1986
Arizona Triassic Petrified wood Araucarioxylon arizonicum
File:ArizonaPetrifiedWood.jpg
1988
California Pleistocene Saber-toothed cat Smilodon fatalis
File:Smilodon fatalis, Pengo.jpg
1974
Colorado Jurassic Stegosaurus Stegosaurus armatus
File:Journal.pone.0138352.g001A.jpg
1982
Connecticut Jurassic Dinosaur tracks Eubrontes giganteus
File:Dinosaur State Park (Rocky Hill, CT) - close-up.JPG
1991
Delaware Cretaceous Belemnite Belemnitella americana
File:Belemnitella americana.jpg
Georgia Cretaceous
Miocene
Shark tooth Carcharocles megalodon
File:Shark teeth in stone.jpg
1976[7]
Idaho Pliocene Hagerman horse Equus simplicidens
File:Equus simplicidens mounted 02.jpg
1988[8]
Illinois Pennsylvanian Tully monster Tullimonstrum gregarium
File:Tullimonstrum.jpg
1989[9]
Indiana Holocene American mastodon Mammut americanum
File:Mammut skeleton Museum of the Earth.jpg
2022[10]
Kansas Cretaceous Pteranodon
(state flying fossil)[11]
Pteranodon longiceps
File:Pteranodon amnh martyniuk.jpg
2014[12]
Cretaceous Tylosaurus
(state marine fossil)[11]
Tylosaurus kansasensis
File:JVBA Mosasaur 6-09-2010.jpg
2014[12]
Kentucky Ordovician
Pennsylvanian
Brachiopod undetermined
File:Cincinnetina meeki (Miller, 1875) slab 3.jpg
1986[13]
Louisiana Oligocene Petrified palmwood Palmoxylon
File:Petrified-Forest-Chemnitz4.JPG
1976[14]
Maine Devonian Pertica plant Pertica quadrifaria
File:Pertica quadrifaria reconstruccion.jpg
1976
Maryland Miocene Ecphora gardnerae
shell
Ecphora gardnerae
gardnerae
File:Ecphora gardnerae.jpg
1984 (name revised, 1994)[15]
Massachusetts Jurassic Dinosaur tracks Eubrontes giganteus
File:Eubrontes giganteus (dinosaur footprint) (Longmeadown Formation, Upper Triassic to Lower Jurassic; Mt. Tom Dinosaur Tracksite, Connecticut River Valley, Massachusetts, USA).jpg
1980[16]
Michigan Holocene American mastodon Mammut americanum
File:Mammut skeleton Museum of the Earth.jpg
2002
Minnesota Pleistocene Giant beaver Castoroides ohioensis
File:Giant Pleistocene Beaver, Castoroides ohioensis.jpg
2025[17]
Mississippi Eocene "Prehistoric whale" Zygorhiza kochii
File:Zygorhiza kochii (early whale).jpg
1981[18]
Missouri Pennsylvanian Sea lily Delocrinus missouriensis 1989[19]
Montana Cretaceous Hadrosaur Maiasaura peeblesorum
File:Maiasaura peeblesorum cast - University of California Museum of Paleontology - Berkeley, CA - DSC04688.JPG
1985[20]
Nebraska Pleistocene Woolly mammoth
Columbian mammoth
Imperial mammoth
Mammuthus primigenius
Mammuthus columbi
Mammuthus imperator
File:Elephas primigenius 7.JPG
1967[21][22]
New Jersey Cretaceous Hadrosaur Hadrosaurus foulkii
File:Hadrosaurus reconstruction.jpg
1991[23][24]
Nevada Triassic Ichthyosaur[25][26] Shonisaurus popularis
File:Shonisaurus skull.jpg
1977 (designated) 1988 (amended)
New Mexico Triassic Coelophysis Coelophysis bauri
File:Coelophysis mount NHM2.jpg
1981[27][28]
New York Silurian Sea scorpion Eurypterus remipes
File:Eurypterus remipes 001.jpg
1984
North Carolina Miocene- Pliocene Shark tooth Otodus megalodon
File:Carcharocles megalodon tooth.JPG
2013[29]
North Dakota Paleocene Shipworm-bored
petrified wood
Teredo petrified wood
File:Fossil (3963430788).jpg
1967[30][31]
Ohio Ordovician Trilobite Isotelus maximus (Fossil invertebrate)
File:Isotelus brachycephalus.JPG
1985[32]
Devonian Dunkleosteus Dunkleosteus terrelli (Fossil Fish)
File:Dunkleosteus CMNH 5768 skull.png
2021[33]
Oklahoma Jurassic Saurophaganax Saurophaganax maximus
File:Saurophaganax 2.jpg
2000[34]
Oregon Eocene Dawn redwood Metasequoia
File:Metasequoia branchlet 02.jpg
2005
Pennsylvania Devonian Trilobite Phacops rana
File:Phacops rana.jpg
1988[35]
Rhode Island Paleozoic Trilobite Genus and species not stated[36]
File:Phacops rana.jpg
2023[37]
South Carolina Pleistocene Columbian mammoth Mammuthus columbi
File:Mammuthus columbi Page.jpg
2014[38]
South Dakota Cretaceous Triceratops Triceratops horridus
File:Triceratops2.png
1988[39]
Tennessee Cretaceous Bivalve Pterotrigonia thoracica
File:Megatrigoniidae - Pterotrigonia caudata.JPG
1998[40]
Utah Jurassic Allosaurus Allosaurus fragilis
File:Allosaurus skull SDNHM.jpg
1988[41]
Vermont Pleistocene Beluga whale (redesignated as state marine fossil in 2014) Delphinapterus leucas
File:Squelette Delphinapterus leucas rdl.jpg
1993[42][43]
Pleistocene Woolly mammoth
tooth and tusk
(state terrestrial fossil)
Mammuthus primigenius
File:Estonian Museum of Natural History Specimen No 177574 photo (g21 g21-2 a jpg).jpg
File:Dinosauria - Mammouth 01.jpg
2014[43][44]
Virginia Cenozoic scallop Chesapecten jeffersonius
File:Chesapecten Jeffersonius Inside.jpg
1993
Washington Pleistocene Columbian mammoth Mammuthus columbi
File:Mammuthus columbi Page.jpg
1998[45]
West Virginia Late Pleistocene Jefferson's ground sloth Megalonyx jeffersonii
File:Megalonyx jeffersonii - Natural History Museum of Utah - DSC07263.JPG
2008[46]
Wisconsin Silurian Trilobite Calymene celebra
File:Calymene celebra Raymond, 1916.jpg
1985[47]
Wyoming Eocene Knightia Knightia spp.
File:Knightia alta 01.jpg
1987

See also

References

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  1. ^ Page Module:Citation/CS1/styles.css has no content."Arkansas State Fossil - Arkansaurus - While Arkansas does not officially have a state fossil it does have a state dinosaur". State Symbols, State Fossil. Fossilera. Retrieved August 31, 2024.
  2. ^ Page Module:Citation/CS1/styles.css has no content."Official State Fossils". nps.gov. National Park Service. Retrieved March 10, 2026.
  3. ^ Page Module:Citation/CS1/styles.css has no content."Iowa to consider recognizing official state fossil". The Seattle Times. January 23, 2018.
  4. ^ Page Module:Citation/CS1/styles.css has no content.Carlson, Brady (January 6, 2015). "Granite Geek: Will The Mastodon Become New Hampshire's Official State Fossil?". New Hampshire Public Radio.
  5. ^ Page Module:Citation/CS1/styles.css has no content."Texas State Symbols". Texas State Legislature. Retrieved December 13, 2017.
  6. ^ Page Module:Citation/CS1/styles.css has no content."Official State of Alabama Fossil". Alabama Emblems, Symbols and Honors. Alabama Department of Archives & History. August 2, 2005. Archived from the original on December 30, 2007. Retrieved March 19, 2007.
  7. ^ Page Module:Citation/CS1/styles.css has no content."Georgia State Fossil". State Symbols, State Fossil. New Georgie Encyclopedia. March 30, 2014. Retrieved May 18, 2026.{{cite web}}: CS1 maint: url-status (link)
  8. ^ The Hagerman horse at the Idaho official list of state emblems
  9. ^ Page Module:Citation/CS1/styles.css has no content.Illinois State Symbols, Department of Natural Resources, archived from the original on February 17, 2017, retrieved May 20, 2019
  10. ^ Page Module:Citation/CS1/styles.css has no content."Indiana lawmakers name mastodon as first state fossil". WHAS-TV. Associated Press. February 19, 2022. Retrieved February 21, 2022.
  11. ^ a b Page Module:Citation/CS1/styles.css has no content."State Fossils - Kansapedia - Kansas Historical Society".
  12. ^ a b Page Module:Citation/CS1/styles.css has no content."List of State Fossils". State Symbols, State Fossil. Fossilera. Retrieved September 1, 2015.
  13. ^ Page Module:Citation/CS1/styles.css has no content."Kentucky State Symbols". Kentucky Department of Libraries and Archives. March 30, 2007. Archived from the original on January 28, 2011. Retrieved July 2, 2007.
  14. ^ Page Module:Citation/CS1/styles.css has no content."Louisiana State Fossil". State Symbols, State Fossil. e-Reference Desk. March 8, 2015. Retrieved March 8, 2015.
  15. ^ Page Module:Citation/CS1/styles.css has no content."Maryland's Official State Fossil Shell". Maryland Geological Survey. Retrieved February 16, 2017.
  16. ^ Official state fossil of Massachusetts in "State Symbols USA"
  17. ^ Page Module:Citation/CS1/styles.css has no content.Sudak, Stuart (May 30, 2025). "Giant beaver becomes Minnesota's official state fossil". Eden Prairie Local News. Retrieved June 26, 2025.
  18. ^ Page Module:Citation/CS1/styles.css has no content.Fossil whale: State Fossil of Mississippi (PDF), Mississippi Department of Environmental Quality, 1991, retrieved May 9, 2019
  19. ^ "The crinoid became Missouri's official fossil in 1989 after a group of Lee's Summit students worked through the legislative process to promote it as a state symbol", Missouri's Secretary of State official website
  20. ^ "On February 22, 1985, a bill was passed unanimously, designating Maiasaura peeblesorum as Montana's official state fossil", A to Z USA by World Trade Press
  21. ^ Page Module:Citation/CS1/styles.css has no content.USA, State Symbols (October 5, 2014). "Mammoth State Fossil | State Symbols USA". statesymbolsusa.org. Retrieved October 11, 2024.
  22. ^ Page Module:Citation/CS1/styles.css has no content."Cenozoic fossils of Nebraska". eas2.unl.edu. Retrieved October 11, 2024.
  23. ^ Page Module:Citation/CS1/styles.css has no content."Hadrosaurus Foulkii ("Haddy") Information". Official website of the Borough of Haddonfield. Borough of Haddonfield. Retrieved August 30, 2024.
  24. ^ Page Module:Citation/CS1/styles.css has no content."The Story of New Jersey's State Fossil: Hadrosaurus foulkii". Official website of the Rutgers Geology Museum. Rutgers Geology Museum. Retrieved August 30, 2024.
  25. ^ Page Module:Citation/CS1/styles.css has no content."Nevada State Fossil | Ichthyosaur". May 28, 2014.
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  27. ^ "About New Mexico - State Fossil", New Mexico's Secretary of State official website
  28. ^ "Coelophysis, the New Mexico State Fossil", at New Mexico Earth Matters, New Mexico Bureau of Geology & Mineral Resources official website
  29. ^ Page Module:Citation/CS1/styles.css has no content."Fossil, Fossilized Teeth of the Megalodon Shark | NCpedia". ncpedia.org. Retrieved March 17, 2016.
  30. ^ Page Module:Citation/CS1/styles.css has no content."North Dakota State Fossil - Teredo Petrified Wood". State Symbols, State Fossil. Fossilera. Retrieved August 31, 2024.
  31. ^ Page Module:Citation/CS1/styles.css has no content."North Dakota State Fossil". statesymbolsusa.org. Retrieved August 31, 2024.
  32. ^ Page Module:Citation/CS1/styles.css has no content."5.071 State invertebrate fossil", Ohio Revised Code, retrieved February 9, 2021
  33. ^ Page Module:Citation/CS1/styles.css has no content."5.078 Official fossil fish of the state", Ohio Revised Code, retrieved February 9, 2021
  34. ^ Page Module:Citation/CS1/styles.css has no content."Oklahoma State Fossil | Saurophaganax maximus". statesymbolsusa.org. September 6, 2014. Retrieved January 30, 2021.
  35. ^ Page Module:Citation/CS1/styles.css has no content.Official State Fossil – Phaecops rana (PDF), Pennsylvania Legislature, December 5, 1988, retrieved September 28, 2021
  36. ^ Rhode Island State Fossil: Trilobite - In 2022, Rhode Island designated trilobites (genus and species not stated) as the state fossil, published by Paleontological Research Institution.
  37. ^ Page Module:Citation/CS1/styles.css has no content."2023 Rhode Island General Laws Title 42 - State Affairs and Government Chapter 42-4 - State Emblems Section 42-4-23. - State fossil". US Law, official publication. Justia.com. Retrieved August 30, 2024.
  38. ^ Page Module:Citation/CS1/styles.css has no content."South Carolina Fossil". WLTX. Retrieved May 28, 2014.[permanent dead link]
  39. ^ Page Module:Citation/CS1/styles.css has no content."South Dakota State Fossil - Triceratops Horridus; In 1988, the South Dakota state legislature designated the dinosaur Triceratops horridus as their state fossil". State Symbols, State Fossil. Fossilera. Retrieved August 31, 2024.
  40. ^ Page Module:Citation/CS1/styles.css has no content."Tennessee State Fossil". statesymbolsusa.org. Retrieved August 31, 2024.
  41. ^ Utah State Fossil - Allosaurus Script error: No such module "webarchive". from pioneer.utah.gov "Pioneer - Utah's Online Library" page. Retrieved on September 8, 2008
  42. ^ Vermont has both a state terrestrial fossil and a state marine fossil.
  43. ^ a b Page Module:Citation/CS1/styles.css has no content."Vermont State Terrestrial Fossil". E Reference Desk. Retrieved March 17, 2018.
  44. ^ Page Module:Citation/CS1/styles.css has no content."Mammoth Tusk Discovered 1865". Brattleboro History. Archived from the original on September 9, 2013. Retrieved March 17, 2018.
  45. ^ http://leg.wa.gov/Symbols/ WA State Symbols
  46. ^ http://www.herald-dispatch.com/homepage/x112312085 Manchins signs bills involving snakes, fossils, research into law
  47. ^ Page Module:Citation/CS1/styles.css has no content."Wisconsin State Symbols". State of Wisconsin. Archived from the original on January 12, 2010. Retrieved December 19, 2011.

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