CretaceousHerbivoreMedium
Tenontosaurus
ten-ON-to-SORE-us
"sinew lizard"
Overview
A medium ornithopod from the Early Cretaceous of North America with a very long tail.
Vital Statistics
Length
6.5 m
Height
2.3 m
Weight
1 t
Est. Speed
25 km/h
Discovered
1970
Named by
John Ostrom
Countries Discovered
United States
Interesting Facts
Had an exceptionally long, stiff tail
A common prey of the dromaeosaurid Deinonychus
From the Cloverly Formation
Closest Relatives
RhabdodonIguanodonDryosaurusZalmoxes