AnkylopollexiaAsiaCerapodaDinosauriaEarly CretaceousGenasauriaHadrosauriformesHadrosauroideaIguanodontiaNeornithischiaOrnithischiaOrnithopodaStyracosterna

Bayannurosaurus perfectus

Dinosaur: Bayannurosaurus perfectus

Type: Ornithopod

Length*:9 m29.5 ft
Weight*:3.2 tons7,055 lb
ESR: 4 / 4 (estimated size reliability)
*The largest known specimen


Material: Nearly complete, semi-articulated skeleton with skull.
References: Xu, X., Tan, Q., Gao, Y., Bao, Z., Yin, Z., Guo, B., … Xing, H. (2018). A large-sized basal ankylopollexian from East Asia, shedding light on early biogeographic history of Iguanodontia.


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