DINOSAUR TYPE SPECIMENS A B C D E F F G H I J K L M N O P Q R S T U V W X Y Z Frequently Asked Questions Additional References > Neosaurus missouriensis > Neosaurus missouriensis - Gilmore 1945   Catalogue: USNM 16735 Material: thirteen caudal (tail) vertebrae Classification: Ornithischia, Ornithopoda, Hadrosauridae Collected: L. Chronister, 1942 Place: Ripley Formation, Bolinger County, Missouri, USA Time: Kimmeridgian, Late Cretaceous Original Publication: C. W. Gilmore. 1945. Journal of Paleontology 19:23-29 Other References: Gilmore, 1945; Baird & Horner, 1979 Neosaurus was one of the last dinosaurs described by Smithsonian Dinosaur Curator C. W. Gilmore. It was renamed later that same year by Gilmore & Stewart as Parrosaurus because the name Neosaurus was preoccupied by another animal species. Originally thought to be a sauropod, this dinosaur was transferred to the hadrosaurs (duckbill dinosaurs) by Baird & Horner in 1979.
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