AnkylopollexiaCerapodaDinosauriaGenasauriaHadrosauridaeHadrosauriformesHadrosauroideaHadrosauromorphaIguanodontiaLate CretaceousNeornithischiaNorth AmericaOrnithischiaOrnithopodaStyracosterna

Stephanosaurus marginatus

Dinosaur: Stephanosaurus marginatus



Type: Ornithopod

Length*:7.6 m24.9 ft
Weight*:2.5 tons5,512 lb
ESR: 2 / 4 (estimated size reliability)
*The largest known specimen



Other

Material: Partial skeleton (mostly limb bones).
References: Lull, Richard S.; Wright, Nelda E. (1942). "Hadrosaurian Dinosaurs of North America".

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