Dinosauria › Ornithischia › Ceratopsia › Ceratopsidae
Silhouette of Einiosaurus

Einiosaurus

Einiosaurus procurvicornis Sampson 1994

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

Einiosaurus procurvicornis is a ceratopsian dinosaur known from the Late Cretaceous, roughly 83.6–72.2 million years ago. It was a herbivore. It was named by Sampson 1994. The species is represented by 3 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~11%
fragmentary record
Confirmed
Inferred
Based on 3 recorded occurrences in the Paleobiology Database.
Geologic Time

Where Einiosaurus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Einiosaurus
252 Mya201 Mya145 Mya66 Mya
Relationships

Part of a wider fossil web

These species share Einiosaurus'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
Stegoceras
Stegoceras validum
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coexisted–with
Hypacrosaurus
Hypacrosaurus stebingeri
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coexisted–with
Corythosaurus
Corythosaurus casuarius
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same–clade
Unescoceratops
Unescoceratops koppelhusae
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same–clade
Cerasinops
Cerasinops hodgskissi
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