AnkylopollexiaCerapodaDinosauriaGenasauriaHadrosauridaeHadrosauriformesHadrosauroideaHadrosauromorphaIguanodontiaLate CretaceousNeornithischiaNorth AmericaOrnithischiaOrnithopodaStyracosterna

“Hadrosaurus” breviceps

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Dinosaur: "Hadrosaurus" breviceps

Cretaceous: 83.6–72.1 Ma
Type: Ornithopod

Length*:13.7 m44.9 ft
Weight*:10 t22,046 lb
ESR: 1 / 4 (estimated size reliability)
*The largest known specimen



Sources

Material: Partial dentary.
References: Prieto-Marquez, A., Weishampel, D.B., and Horner, J.R. (2006). "The dinosaur Hadrosaurus foulkii, from the Campanian of the East Coast of North America, with a reevaluation of the genus.".

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