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During the Early Cretaceous, new dinosaurs evolved to replace the old ones. Sauropods were still present, but they were not as diverse as they were in the Jurassic Period. Theropods from the Early Cretaceous of North America include dromaeosaurids such as Deinonychus and Utahraptor, the carnosaur Acrocanthosaurus, and the coelurosaur Microvenator.
Acrocanthosaurus (/ ˌ æ k r oʊ ˌ k æ n θ ə ˈ s ɔːr ə s / AK-roh-KAN-thə-SOR-əs; lit. ' high-spined lizard ') is a genus of carcharodontosaurid dinosaur that existed in what is now North America during the Aptian and early Albian stages of the Early Cretaceous, from 113 to 110 million years ago.
For additional high quality dinosaur images, see the Dinosaur Image Review Tyrannosaurus rex skeleton at the Carnegie Museum of Natural History, Pittsburgh. Photo credit: User:ScottRobertAnselmo
A paleontology curator preparing the skeleton of a baby dinosaur some seven or eight million years old for exhibition. Fossil found in Montana. Artist unknown, 1921. Credit - Pierce Archive LLC ...
This is a list of dinosaurs whose remains have been recovered from Appalachia. During the Late Cretaceous period, the Western Interior Seaway divided the continent of North America into two landmasses; one in the west named Laramidia and Appalachia in the east. Since they were separated from each other, the dinosaur faunas on each of them were ...
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".
Sturgeon were America's vanishing dinosaurs, armor-plated beasts that crowded the nation's rivers until mankind's craving for caviar pushed them to the edge of extinction. More than a century ...
Mesozoic dinosaurs of North America (6 C, 3 P) Pages in category "Dinosaurs of North America" The following 4 pages are in this category, out of 4 total.