Eubrontes fossil dinosaur track at Dinosaur State Park in Connecticut; photo by Ken Zirkel on Flickr (noncommercial use permitted with attribution).
Official State Fossil of Connecticut
Connecticut designated a large three-toed dinosaur track (Eubrontes Giganteus) as the official state fossil in 1991 (a state dinosaur, Dilophosaurus, was also adopted in July 2017). All State Fossils
This dinosaur track was imprinted 200 million years ago during the early Jurassic period. The sandstone of the Connecticut Valley is the world's foremost dinosaur track location, attracting visitors from across the globe.