AnkylopollexiaCerapodaDinosauriaGenasauriaHadrosauridaeHadrosauriformesHadrosauroideaHadrosauromorphaIguanodontiaLate CretaceousNeornithischiaNorth AmericaOrnithischiaOrnithopodaStyracosterna

Parrosaurus missouriensis

Dinosaur: Parrosaurus missouriensis

Cretaceous: 72.1–66 Ma
Type: Ornithopod

Length*:12 m39.4 ft
Weight*:7.5 tons16,535 lb
ESR: 2 / 4 (estimated size reliability)
*The largest known specimen



Sources

Material: 13 caudal vertebrae, skull fragments, other material ?
References: Gilmore, Charles Whitney; Stewart, Dan R. (1945). "A New Sauropod Dinosaur from the Upper Cretaceous of Missouri".

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