AnkylopollexiaCerapodaDinosauriaGenasauriaHadrosauridaeHadrosauriformesHadrosauroideaHadrosauromorphaIguanodontiaKritosauriniLate CretaceousNeornithischiaOrnithischiaOrnithopodaSaurolophinaeSouth AmericaStyracosterna

Bonapartesaurus rionegrensis

Dinosaur: Bonapartesaurus rionegrensis

Type: Ornithopod

Length*: 6.9 m 22.6 ft
Weight*: 1.85 tons 4,078 lb
*The largest known specimen

ESR: 3 / 4 (estimated size reliability)


Material: A large part of the skeleton without skull.
References: Cruzado-Caballero, P., & Powell, J. (2017). Bonapartesaurus rionegrensis, a new hadrosaurine dinosaur from South America: implications for phylogenetic and biogeographic relations with North America.


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