AnkylopollexiaCerapodaDinosauriaGenasauriaHadrosauridaeHadrosauriformesHadrosauroideaHadrosauromorphaIguanodontiaLambeosaurinaeLambeosauriniLate CretaceousNeornithischiaNorth AmericaOrnithischiaOrnithopodaStyracosterna

Hypacrosaurus altispinus

Dinosaur: Hypacrosaurus altispinus

Cretaceous: 72.1–66 Ma
Type: Ornithopod

Length*:10.4 m34.1 ft
Weight*:5.3 t11,684 lb
ESR: 3.5 / 4 (estimated size reliability)
*The largest known specimen



Locations


Sources

Material: Many skeletons and skulls (juvenile to adult).
References: Evans, D. C. (2010). Cranial anatomy and systematics of Hypacrosaurus altispinus, and a comparative analysis of skull growth in lambeosaurine hadrosaurids (Dinosauria: Ornithischia).

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