Dinosauria › Ornithischia › Thescelosauridae
Silhouette of Orodromeus

Orodromeus

Orodromeus makelai Horner and Weishampel 1988

Late Cretaceous (Maastrichtian) · 83.6–66 Mya
Key Statistics
Diet
herbivore
Locomotion
Unknown
Overview

Orodromeus makelai is a dinosaur known from the Late Cretaceous, roughly 83.6–66.0 million years ago. It was a herbivore. It was named by Horner and Weishampel 1988. The species is represented by 8 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~27%
confidence from occurrence count
Confirmed
Inferred
Based on 8 recorded occurrences in the Paleobiology Database.
Geologic Time

Where Orodromeus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Orodromeus
252 Mya201 Mya145 Mya66 Mya
Relationships

Part of a wider fossil web

These species share Orodromeus'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
Thescelosaurus
Thescelosaurus neglectus
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same–clade
Koreanosaurus
Koreanosaurus boseongensis
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same–clade
Albertadromeus
Albertadromeus syntarsus
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