Tenontosaurus Tenontosaurus tilletti Ostrom 1970
/tɪˌnɒntəˈsɔːrəs/
Early Cretaceous (Cenomanian) · 121.4–93.9 Mya
Key Statistics
Diet
herbivore
Locomotion
bipedal
inferred from clade
Habitat
ground-dwelling
Social
herding
Where It Was Found
Country
United States
Regions
Montana · Wyoming · Oklahoma
Formations
Cloverly · Antlers
Dig sites
53
distinct collections
Overview
Tenontosaurus tilletti is an ornithopod dinosaur known from the Early Cretaceous, roughly 121.4–93.9 million years ago. It was a herbivore. It is recorded as ground-dwelling and herding. Fossils have been recovered from Montana, United States. It was named by Ostrom 1970. The species is represented by 53 recorded occurrences in the Paleobiology Database.
Fossil Record Completeness
How much of this profile is grounded in the fossil record
~88%
well attested
Based on 53 recorded occurrences in the Paleobiology Database.
Geologic Time
Where Tenontosaurus tilletti sits in deep time
Tenontosaurus
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Tenontosaurus tilletti's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology. Predator–prey pairs additionally have to have been dug up in the same place.