Dinosauria › Ornithischia
Silhouette of Stegoceras

Stegoceras

Stegoceras validum (Lambe 1902)

Late Cretaceous (Campanian) · 83.6–72.2 Mya
Key Statistics
Diet
herbivore
Locomotion
bipedal
inferred from clade
Overview

Stegoceras validum is a pachycephalosaur dinosaur known from the Late Cretaceous, roughly 83.6–72.2 million years ago. It was a herbivore. It was named by (Lambe 1902). The species is represented by 32 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~72%
confidence from occurrence count
Confirmed
Inferred
Based on 32 recorded occurrences in the Paleobiology Database.
Geologic Time

Where Stegoceras sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Stegoceras
252 Mya201 Mya145 Mya66 Mya
Relationships

Part of a wider fossil web

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

predator–prey
Ichthyornis
Ichthyornis dispar
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predator–prey
Hesperornis
Hesperornis regalis
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predator–prey
Gorgosaurus
Gorgosaurus libratus
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coexisted–with
Centrosaurus
Centrosaurus apertus
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coexisted–with
Protoceratops
Protoceratops andrewsi
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coexisted–with
Hypacrosaurus
Hypacrosaurus stebingeri
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same–clade
Stegoceras
Stegoceras novomexicanum
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same–clade
Colepiocephale
Colepiocephale lambei
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