AnkylopollexiaBrachylophosauriniCerapodaDinosauriaGenasauriaHadrosauridaeHadrosauriformesHadrosauroideaHadrosauromorphaIguanodontiaLate CretaceousNeornithischiaNorth AmericaOrnithischiaOrnithopodaSaurolophinaeStyracosterna

Maiasaura peeblesorum

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Dinosaur: Maiasaura peeblesorum

Cretaceous: 83.6–72.1 Ma
Type: Ornithopod

Length*:8.4 m27.6 ft
Weight*:2.3 t5,071 lb
ESR: 4 / 4 (estimated size reliability)
*The largest known specimen



Locations


Sources

Material: More than 200 individuals in all age ranges.
References: Albert Prieto-Marquez and Merrilee F. Guenther (2018). Perinatal specimens of Maiasaura from the Upper Cretaceous of Montana (USA): insights into the early ontogeny of saurolophine hadrosaurid dinosaurs.

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