Parrosaurus missouriensis

Hypsibema missouriensis Temporal range: Campanian PreЄ Є O S D C P T J K Pg N
A model of the species on display at the Bollinger County Museum of Natural History
Scientific classification (Nomen oblitum)
Kingdom:	Animalia
Phylum:	Chordata
Class:	Sauropsida
Superorder:	Dinosauria
Order:	Ornithischia
Suborder:	Ornithopoda
Infraorder:	Iguanodontia
Superfamily:	Hadrosauroidea
Genus:	Hypsibema Cope, 1869
Species:	H. missouriensis
Binomial name
Hypsibema missouriensis Baird & Horner, 1979
Synonyms
Neosaurus missouriensis Gilmore & Stewart, 1945 Parrosaurus missouriensis Gilmore, 1945

Neosaurus missouriensis Gilmore & Stewart, 1945
Parrosaurus missouriensis Gilmore, 1945

Hypsibema missouriensis (pronounced /ˌhɪpsɪˈbiːmə mɪˌzʊəriˈɛnsɪs/; originally Neosaurus missouriensis, first renamed to Parrosaurus missouriensis, also spelled Hypsibema missouriense) is a species of plant-eating dinosaur in the genus Hypsibema, and the state dinosaur of the U.S. state Missouri. One of the few official state dinosaurs, bones of the species were discovered in 1942, at what later became known as the Chronister Dinosaur Site near Glen Allen, Missouri. The remains of Hypsibema missouriensis at the site, which marked the first known discovery of dinosaur remains in Missouri, are the only ones to have ever been found. Although first thought to be a sauropod, later study determined that it was a hadrosaur, or "duck-billed" dinosaur, whose snouts bear likeness to ducks' bills. Some of the species' bones found at the Chronister Dinosaur Site are housed in Washington, D.C.'s Smithsonian Institution.