Dinosauria › Ornithischia
Silhouette of Ouranosaurus

Ouranosaurus

Ouranosaurus nigeriensis Taquet 1972

Early Cretaceous (Albian) · 121.4–100.5 Mya
Key Statistics
Diet
herbivore
Locomotion
bipedal
inferred from clade
Overview

Ouranosaurus nigeriensis is an ornithopod dinosaur known from the Early Cretaceous, roughly 121.4–100.5 million years ago. It was a herbivore. It was named by Taquet 1972. The species is represented by 5 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~18%
fragmentary record
Confirmed
Inferred
Based on 5 recorded occurrences in the Paleobiology Database.
Geologic Time

Where Ouranosaurus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Ouranosaurus
252 Mya201 Mya145 Mya66 Mya
Relationships

Part of a wider fossil web

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

predator–prey
Erectopus
Erectopus superbus
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predator–prey
Suchomimus
Suchomimus tenerensis
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predator–prey
Eocarcharia
Eocarcharia dinops
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coexisted–with
Psittacosaurus
Psittacosaurus mongoliensis
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coexisted–with
Polacanthus
Polacanthus foxii
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coexisted–with
Hylaeosaurus
Hylaeosaurus armatus
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coexisted–with
Nigersaurus
Nigersaurus taqueti
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same–clade
Probactrosaurus
Probactrosaurus gobiensis
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