AntarcticaAverostraAvetheropodaCoelurosauriaDinosauriaEusaurischiaLate CretaceousManiraptoraManiraptoriformesNeotheropodaOrionidesParavesPennaraptoraSaurischiaTetanuraeTheropodaTyrannoraptora

Imperobator antarcticus

Dinosaur: Imperobator antarcticus

Type: Theropod

Length*: 4 m 13.1 ft
Weight*: 100 kg 220 lb
*The largest known specimen

ESR: 1 / 4 (estimated size reliability)


Material: Fragmentary left and right pes, skull fragments ?, teeth ?, referred other fragmentary skeleton.
References: Ely, R. C., & Case, J. A. (2019). Phylogeny of A New Gigantic Paravian (Theropoda; Coelurosauria; Maniraptora) From The Upper Cretaceous Of James Ross Island, Antarctica.


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