Dinosauria › Ornithischia › Ornithopoda › Hadrosauridae
Silhouette of Edmontosaurus

Edmontosaurus

Edmontosaurus regalis Lambe 1917

Late Cretaceous (Maastrichtian) · 83.6–66 Mya
Key Statistics
Diet
herbivore
Locomotion
bipedal
inferred from clade
Overview

Edmontosaurus regalis is an ornithopod dinosaur known from the Late Cretaceous, roughly 83.6–66.0 million years ago. It was a herbivore. It was named by Lambe 1917. The species is represented by 10 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~33%
confidence from occurrence count
Confirmed
Inferred
Based on 10 recorded occurrences in the Paleobiology Database.
Geologic Time

Where Edmontosaurus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Edmontosaurus
252 Mya201 Mya145 Mya66 Mya
Relationships

Part of a wider fossil web

These species share Edmontosaurus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology.

predator–prey
Saurornitholestes
Saurornitholestes langstoni
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predator–prey
Tyrannosaurus
Tyrannosaurus rex
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predator–prey
Richardoestesia
Richardoestesia isosceles
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coexisted–with
Richardoestesia
Richardoestesia gilmorei
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coexisted–with
Troodon
Troodon formosus
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same–clade
Sektensaurus
Sektensaurus sanjuanboscoi
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same–clade
Telmatosaurus
Telmatosaurus transsylvanicus
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same–clade
Hypacrosaurus
Hypacrosaurus altispinus
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