Dinosauria›Reptilia›Theropoda›Sinosauropterygidae
Silhouette of Sinosauropteryx prima

Sinosauropteryx Sinosauropteryx prima (Ji and Ji 1996)

/sˈɪnəsˌɔːɹəptɚɹˌɪks/ estimated
Early Cretaceous (Aptian) · 125.8–119.6 Mya

Key Statistics

Diet
carnivore
Locomotion
bipedal
inferred from clade

Overview

Sinosauropteryx prima is a theropod dinosaur known from the Early Cretaceous, roughly 125.8–119.6 million years ago. It was a carnivore. It was named by (Ji and Ji 1996). The species is represented by 2 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~8%
fragmentary record
Confirmed
Inferred
Based on 2 recorded occurrences in the Paleobiology Database.

Geologic Time

Where Sinosauropteryx prima sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Sinosauropteryx
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

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

predator–prey
Iguanodon
Iguanodon bernissartensis
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predator–prey
Mantellisaurus
Mantellisaurus atherfieldensis
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predator–prey
Malawisaurus
Malawisaurus dixeyi
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coexisted–with
Psittacosaurus
Psittacosaurus lujiatunensis
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coexisted–with
Ornithopsis
Ornithopsis hulkei
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same–clade
Aristosuchus
Aristosuchus pusillus
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same–clade
Sinocalliopteryx
Sinocalliopteryx gigas
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same–clade
Huaxiagnathus
Huaxiagnathus orientalis
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