AverostraAvetheropodaCoelurosauriaDinosauriaEarly CretaceousEusaurischiaManiraptoriformesNeotheropodaNorth AmericaOrionidesOrnithomimosauriaSaurischiaTetanuraeTheropodaTyrannoraptora

Arkansaurus fridayi

Dinosaur: Arkansaurus fridayi

Type: Theropod

Length*:4.5 m14.8 ft
Weight*:200 kg441 lb
ESR: 1.5 / 4 (estimated size reliability)
*The largest known specimen


Material: Partial right pes, including metatarsals II, III, and IV, pedal phalanges II-1, III-1, III-2, and IV-1, and three pedal unguals.
References: Hunt, R. K., & Quinn, J. H. (2018). A new ornithomimosaur from the Lower Cretaceous Trinity Group of Arkansas.


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