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Official State Dinosaurs and Fossils

All dinosaurs can be fossils. All fossils are not dinosaurs. We have grouped dinosaurs and fossils together on this list because of the naming conventions used by some states when adopting official dinosaurs. Some states adopted dinosaurs as official "fossils" and some adopted dinosaurs as official "dinosaurs." Use the "Categories" list box to see exactly how many states adopted dinosaurs as official state "dinosaurs."

Official dinosaurs and fossils listed by state. (List by state or year)
StateList by state Name Designated as Year
Alabama Basilosaurus cetoides (Whale) Official State of Alabama fossil 1984
Alaska Woolly Mammoth (Mammuthus primigenius) Official state fossil 1986
Arizona Petrified Wood (Araucarioxylon arizonicum) Official state fossil 1988
Arkansas [ None ]    
California Sabre-toothed Cat (Smilodon californicus) Official State Fossil 1973
Colorado Stegasaurus (Plated dinosaur) Official state fossil 1982
Connecticut Dinosaur footprints of Eubrontes giganteus State fossil 1991
Delaware Belemnite (Belemnitella americana) Official State fossil 1996
Florida [ None ]    
Georgia Shark Tooth Official Georgia State fossil 1978
Hawaii [ None ]    
Idaho Hagerman Horse Fossil (Equus simplicidens) State fossil 1988
Illinois The Tully Monster (Tullimonstrum gregarium) Official State fossil 1989
Indiana [ None ]    
Iowa [ None ]    
Kansas [ None ]    
Kentucky Brachiopod State fossil 1986
Louisiana Petrified Palmwood Official State fossil 1976
Maine Pertica quadrifaria Official fossil 1985
Maryland Ecphora gardnerae gardnerae (Snail) State fossil shell 1994
Maryland Astrodon johnstoni (Sauropod dinosaur) State dinosaur 1998
Massachusetts Dinosaur Track Fossil of fossil emblem 1980
Michigan [ None ]    
Michigan Mastodon (Mammut americanum) Official fossil 2002
Minnesota [ None ]    
Mississippi Prehistoric Whales (Basilosaurus cetoides & Zygorhiza) Official fossil 1981
Missouri Fossilized remains of Crinoidea (Delocrinus missouriensis) Official State fossil 1989
Montana Duck-billed Dinosaur (Maiasaura peeblesorum) Official Montatna State fossil 1985
Nebraska Mammoth Official State fossil 1967
Nevada Ichthyosaur (Shonisaurus popularis) Official State fossil 1977
New Hampshire [ None ]    
New Jersey Hadrosaurus foulkii (Duck-billed Dinosaur) State dinosaur 1991
New Mexico Coelophysis Dinosaur (Coelophysis bauri) Official fossil 1981
New York Sea Scorpion (Eurypterus remipes) Official fossil 1984
North Carolina [ None ]    
North Dakota Teredo Petrified Wood (Shipworm-bored petrified wood) Official fossil 1967
Ohio Trilobite (Isotelus) Official invertebrate Fossil 1985
Oklahoma Saurophaganax maximus (Theropod dinosaur) State fossil 2000
Oklahoma Acrocanthosaurus atokensis State dinosaur 2006
Oregon Metasequoia Official fossil 2005
Pennsylvania Phacops rana (Trilobite) Official State fossil 1988
Rhode Island [ None ]    
South Carolina [ None ]    
South Dakota Triceratops (Horned dinosaur) Official fossil 1988
Tennessee Pterotrigonia thoracica (Bivalve mollusk) Official fossil 1998
Texas Paluxysaurus jonesi (Quadrupedal sauropod) Official Lone Star State dinosaur 2009
Utah Allosaurus (Theropod dinosaur) State fossil 1988
Vermont White Whale (Delphinapterus leucas) State fossil 1993
Virginia Chesapecten jeffersonius (Bivalve scallop) Official fossil 1993
Washington Columbian Mammoth (Mammuthus columbi) Official fossil 1998
West Virginia Megalonyx Jeffersonnii State fossil 2008
Wisconsin Trilobite (Calymene celebra) State fossil 1986
Wyoming Knightia (Fish) State fossil 1987
Wyoming Triceratops (Horned dinosaur) State dinosaur 1994
Stately Fossils: A Comprehensive Look at the State Fossils and Other Official Fossils

Stately Fossils: A Comprehensive Look at the State Fossils and Other Official Fossils, by Steve Brusatte. 234 pages. Publisher: Fossil News (September 2002)

The definitive stories of how our state fossils, state dinosaurs and other state stones and gems were proposed and selected. And what a marvelous array of specimens and species have been elevated to such lofty status! We note that 'stately fossils' run the gamut of variety and time. From trilobites and brachiopods through fossil whales (Tully) monsters, and so many incredible species in between, spanning the three Phanerozoic eras. Steve has traced the story of how fossils became "the" state fossils all the way back to an early period in the emerging science of paleontology in America. In these unfolding tales, Steve relates many intriguing details concerning the adoption of fossils carrying special significance in 44 of our 50 states. This book is written clearly & informatively. It succeeds as a book that both young & old can enjoy. For each entry Steve describes the history of discoveries of each fossil, the occurrence and paleoecology pf the species and circumstances leading toward legislation of the fossils as the official "state fossils."

Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages

Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages, by Dr. Thomas R. Holtz Jr. 432 pages. Publisher: Random House Books for Young Readers (October 23, 2007) Reading level: Ages 12+.

Written by a professional paleontologist specifically for young readers, this guide to the Dinosauria is packed with enough detail and insider information to satisfy even die-hard dinophiles! The text includes brief entries on all 800+ "named" species of Mesozoic dinosaurs, as well as chapters on the history of dinosaur discoveries, the science of dinosaur art, dinosaur biology, and much more. With sidebars by 33 world-famous paleontologists, museum-quality illustrations, and over 20 never-beforeseen restorations of new dinosaur species, this is a must-have compendium of fact and fandom that dino enthusiasts of all ages will devour with glee!


Fossils, by David Ward. 320 pages. Publisher: Dorling Kindersley (September 1, 2010) A new edition of the clearest, most authoritative guide to rocks, minerals and fossils you will find.

Packed with more than 1,000 amazing photographs of over 500 species, this handbook is designed to cut through the complicated identification process and enable you to recognize species instantly. Covers everything from what a fossil is, how they are classified to how to start a collection.

Perfect for fossil lovers - a comprehensive guide for collectors.