Cerapoda Dinosauria Early Cretaceous Genasauria Iguanodontia Neornithischia North America Ornithischia Ornithopoda

Tenontosaurus tilletti

Dinosaur: Tenontosaurus tilletti

Cretaceous: 121.4–100.5 Ma

Type: Ornithopod

*Length:**	7.8 m	25.6 ft
*Weight:**	1000 kg	2,205 lb

ESR: 4 / 4 (estimated size reliability)
*The largest known specimen

Area: North America

Period

Epoch: Early Cretaceous
Stage: Aptian-Albian
Years: 121.4–100.5 Ma

Details

Status: valid
Author: Ostrom
Year: 1970

Distribution

Area: North America
Country: USA
Region: Montana, Oklahoma, Wyoming, Texas
Formation: Cloverly, Antlers, Paluxy

Classification

Dinosauria
Ornithischia
Genasauria
Neornithischia
Cerapoda
Ornithopoda
Iguanodontia

Sources

Material: At least several dozen individuals.
References: Tennant, J. (2013). "Osteology of a Near-Complete Skeleton of Tenontosaurus tilletti (Dinosauria: Ornithopoda) from the Cloverly Formation, Montana, USA.". Werning, S. (2012). "The Ontogenetic Osteohistology of Tenontosaurus tilletti".

Locations

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