[D] Neosaurus missouriensis [dG] [jG] [Pr]
Gilmore vide Gilmore & Stewart, 1945 / Nopcsa, 1923
Cretaceous Late Maastrichtian
Ornithischia Ornithopoda Hadrosauridae Nomina Dubia
Ripley Formation, Missouri, US
Hypsibema (Cope, 1869) > Hypsibema crassicauda (Cope, 1869) >> Hypsibema missouriensis (Baird & Horner, 1979) > Parrosaurus missouriensis (Gilmore, 1945) > Neosaurus missouriensis (Gilmore vide Gilmore & Stewart, 1945 / Nopcsa, 1923)
Caudal vertebrae, fragmentary dentary and predentary Type of Parrosaurus (Gilmore,1945) (Preoccupied by Neosaurus, Nopcsa 1923)
Described as a sauropod by Gilmore in 1945 in the Journal of Paleontology. Later that year by Gilmore and Stewart renamed it as Parrosaurus because the name Neosaurus that Gilmore gave to this specimen was preoccupied.
The type material consist of thirteen vertebrae from Ripley Formation (Late Cretaceous Period) in Bolinger County, Missouri. It was collected in 1942 by L. Chronister. In 1979 this dinosaur was transferred to the hadrosaurs (duckbill dinosaurs) by Baird and Horner.
In 1942, a Bollinger County family was digging next to their house when they uncovered some bones. The bones were given to a geologist from the Missouri Geologic Survey, and then the Smithsonian Institution paid the family $50. The family promptly used to money to purchase a cow!