AverostraAvetheropodaCoelurosauriaDinosauriaEusaurischiaLate CretaceousManiraptoraManiraptoriformesNeotheropodaNorth AmericaOrionidesParavesPennaraptoraSaurischiaTetanuraeTheropodaTroodontidaeTyrannoraptora

Troodon formosus 

Dinosaur: Troodon formosus 

Type: Theropod

Length*:4.3 m14.1 ft
Weight*:200 kg441 lb
Speed:53 km/h33 mph
ESR: 2 / 4 (estimated size reliability)
*The largest known specimen


Material: Teeth and many bones (mostly single bones).
References: Mortimer - Theropod database (online).Leidy, (1856). Notices of remains of extinct reptiles and fishes, discovered by Dr. F. V. Hayden in the bad lands of the Judith River, Nebraska territory.


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