Article · Wikipedia archive · Last revised Jul 4, 2026

List of U.S. state dinosaurs

This is a list of U.S. state dinosaurs in the United States, including the District of Columbia. Many states also have dinosaurs as state fossils, or designate named avian dinosaurs, but this list only includes those that have been officially designated as "state dinosaurs".

Last revised
Jul 4, 2026
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This is a list of U.S. state dinosaurs in the United States, including the District of Columbia. Many states also have dinosaurs as state fossils, or designate named avian dinosaurs (List of U.S. state birds), but this list only includes those that have been officially designated as "state dinosaurs".

List of dinosaurs for states and other regions in the US

State or Territory Dinosaur Image Year
Arizona Sonorasaurus thompsoni
source ↗
20181
Arkansas Arkansaurus fridayi
source ↗
20172
California Augustynolophus morrisi
source ↗
20173
Connecticut Dilophosaurus sp.
source ↗
2017-07-104
Delaware Dryptosaurus aquilunguis
source ↗
202256
District of Columbia "Capitalsaurus"
source ↗
19987
Idaho Oryctodromeus cubicularis
source ↗
20238
Massachusetts Podokesaurus holyokensis
source ↗
2021910
Maryland Astrodon johnstoni
source ↗
199811
Missouri Parrosaurus missouriensis
source ↗
20041213
New Jersey Hadrosaurus foulkii
source ↗
199114
Oklahoma Acrocanthosaurus atokensis
source ↗
200615
Texas Sauroposeidon proteles (originally Paluxysaurus jonesi)
source ↗
2009 (replaced Pleurocoelus which was state dinosaur 1997–2009)16
Utah Utahraptor ostrommaysorum
source ↗
201817
Washington "Suciasaurus rex"
source ↗
202318
Wyoming Triceratops horridus
source ↗
199419

List of candidate dinosaurs

This is for dinosaurs that were or are candidates for state dinosaur but either were not designated or have yet to officially be.

State Dinosaur Image Year Result
Arizona Dilophosaurus wetherilli
source ↗
19982021 Vetoed when it was revealed fossils were illegally taken from Navajo Nation22
Massachusetts Anchisaurus polyzelus
source ↗
202123 Lost to Podokesaurus in a poll taken prior to bill9
See also

See also

References

References

  1. "Sonorasaurus officially named Arizona's state dinosaur". KTAR.com. 2018-04-11. Retrieved 2018-04-12.
  2. Chandler, Angela (22 February 2017). "Official State Dinosaur". Encyclopedia of Arkansas. Retrieved 25 September 2017.
  3. Blume, Howard (23 September 2017). "California gets its own official state dinosaur". Los Angeles Times.
  4. Altimari, Daniela. "Bill Naming State Dinosaur Signed by the Governor". courant.com. Retrieved 2017-07-20.
  5. "House Bill 390 151st General Assembly (Present)". Delaware General Assembly. 2022-05-17.
  6. Megginson, Charles (2022-05-11). "Jurassic Times Call For Jurassic Measures: DE To Designate State Dino – Town Square Delaware LIVE". Retrieved 2022-05-19.
  7. "Official Dinosaur Designation Act of 1998, Bill 12-538". Archived from the original on 2006-09-28.
  8. "Senate Bill 1127". Idaho Legislature. 2023-03-31.
  9. Morrison, Heather (February 4, 2021). "Massachusetts State Dinosaur: Podokesaurus holyokensis wins fan vote, lawmaker files legislation to officially declare state dinosaur". Masslive.
  10. Lewis, Jack Patrick (February 4, 2021). "MA HOUSE DOCKET, NO. 1392 FILED ON: 2/4/2021". The 192nd General Court of the Commonwealth of Massachusetts. Retrieved February 12, 2021.
  11. "Astrodon johnstoni, Maryland State Dinosaur". Archived from the original on 2006-01-04. Retrieved 2007-09-03.
  12. "RSMo 10.095". Archived from the original on 2013-10-30. Retrieved 2011-01-04.
  13. "Missouri State Dinosaur - Missouri Secretary of State". www.sos.mo.gov. Retrieved 2022-12-23.
  14. "NJ Legislation on State Dinosaur".
  15. "§ 25-98.14. State dinosaur". eLaws.us. eLaws. Retrieved 12 July 2021.
  16. Texas State Library and Archives Commission. Texas State Symbols. July 1, 2010. Accessed November 25, 2010
  17. Utah Code Part 6, 63G-1-601 State symbols (PDF), retrieved 2021-08-09
  18. HB 1020 - 2023-24, retrieved 2023-05-05
  19. "Wyoming Facts and Symbols - State of Wyoming".
  20. Moeser, C. (April 26, 1998). "Arizona dinosaur debate becomes real Godzilla". The Arizona Republic. Deseret News. Retrieved May 12, 2020.
  21. Gebers, S. (February 19, 2018). "Arizona has no official state dinosaur, so an 11 year-old proposed one – the Sonorasaurus". The Republic. Retrieved February 20, 2018 – via AZ Central.
  22. "Dilophosaurus Discovered". ucmp.berkeley.edu. Retrieved 2021-02-12.
  23. Smith, Meghan (January 6, 2021). "Mass. Will Soon Have An Official State Dinosaur — And A Lesson In The Legislative Process". GBH.
External links