Browse Items (13 total) Tags: Cretaceous Browse All Browse by Tag Search Items Previous Page of 2 Sort by: Title Creator Date Added Track, Theropod This is one track of many from the first theropod dinosaur trackways known from the state of Arkansas. They date to the early Cretaceous. Discovered in 2011, the entire site was mapped using LiDAR technology. The resulting map can be viewed here:… Tags: Arkansas, Cretaceous, Dinosaurs, Fossils, Geology, North America, United States Dinosaur Cast and mold of Arkansaurus fridayi. Tags: Animals, Arkansas, Cretaceous, Dinosaurs, Fossils, Geology, Mesozoic, North America, Paleontology, Reptiles, United States Dinosaur (Arkansaurus fridayi) Cast of Arkansaurus fridayi right hind leg. Tags: Animals, Arkansas, Cretaceous, Dinosaurs, Fossils, Geology, Mesozoic, North America, Paleontology, Reptiles, United States Previous Page of 2 Featured Item Dinosaur Cast containing the 4th metatarsal of the right hind foot.