Dinosauria›Ornithischia
Silhouette of Psittacosaurus mongoliensis

Psittacosaurus Psittacosaurus mongoliensis Osborn 1923

/ˌsɪtəkəˈsɔːrəs/
Early Cretaceous (Albian) · 121.4–110.1 Mya

Key Statistics

Diet
herbivore
Locomotion
quadrupedal
inferred from clade

Overview

Psittacosaurus mongoliensis is a ceratopsian dinosaur known from the Early Cretaceous, roughly 121.4–110.1 million years ago. It was a herbivore. It was named by Osborn 1923. The species is represented by 14 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~43%
confidence from occurrence count
Confirmed
Inferred
Based on 14 recorded occurrences in the Paleobiology Database.

Geologic Time

Where Psittacosaurus mongoliensis sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Psittacosaurus
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

These species share Psittacosaurus mongoliensis'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
Subtiliolithus
Subtiliolithus hyogoensis
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predator–prey
Suchomimus
Suchomimus tenerensis
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coexisted–with
Atlascopcosaurus
Atlascopcosaurus loadsi
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coexisted–with
Polacanthus
Polacanthus foxii
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coexisted–with
Ouranosaurus
Ouranosaurus nigeriensis
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coexisted–with
Leaellynasaura
Leaellynasaura amicagraphica
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same–clade
Archaeoceratops
Archaeoceratops yujingziensis
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