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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".
Triceratops horridus: BMRP 2006.4.1 Homer Burpee Museum of Natural History: Rockford: Illinois: USA: Sub-adult specimen Skull Triceratops horridus: FMNH P12003 Field Museum of Natural History: Chicago: Illinois: USA: Skeleton, mounted Triceratops prorsus: CM 1219 Carnegie Museum of Natural History: Pittsburgh: Pennsylvania: USA: Skeleton ...
This list of the Paleozoic life of Pennsylvania contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Pennsylvania and are between 538.8 and 252.17 million years of age.
Ankylosaurus [nb 1] is a genus of armored dinosaur. Its fossils have been found in geological formations dating to the very end of the Cretaceous Period, about 68–66 million years ago, in western North America, making it among the last of the non-avian dinosaurs. It was named by Barnum Brown in 1908; it is monotypic, containing only A ...
Triceratops (/ t r aɪ ˈ s ɛr ə t ɒ p s / try-SERR-ə-tops; [1] lit. ' three-horned face ') is a genus of chasmosaurine ceratopsian dinosaur that lived during the late Maastrichtian age of the Late Cretaceous period, about 68 to 66 million years ago in what is now western North America.
Fossils of Tawa-like dinosaurs have also been found in South America, which has important indications about paleogeography. During the Early Jurassic Period , dinosaurs such as Dilophosaurus , Anchisaurus , Coelophysis (formerly known as Megapnosaurus ), and the early thyreophoran Scutellosaurus lived in North America.
The first recorded Torosaurus find in Colorado, the most complete Torosaurus ever found. [45] Found in 2017 and originally thought to be a Triceratops. [46] Yoshi's Trike MOR 3027 Museum of the Rockies: Triceratops: Late Cretaceous (Maastrichtian, 68-66 million years ago) Hell Creek formation: Has longest horns found in any Triceratops known
However, invalid species are sometimes resurrected, such as in the case of Brontosaurus, and sometimes the validity of a species can be controversial among researchers (e.g. the case of Triceratops and Torosaurus). For the purposes of neutrality and completeness, all described species and genera of thyreophorans are included, even those that ...