Monolophosaurus — artistic reconstruction

Jurassic

Monolophosaurus

Monolophosaurus jiangi

The catalogue presents Monolophosaurus as a carnivore member of Monolophosauridae that lived during the Jurassic, between 165.3–161.5 Ma. Its estimated range is 5.0–6.0 m in length and 475–600 kg in mass, giving a practical sense of scale. Reference material comes from Wucaiwan Formation, Xinjiang, China. Size and mass are approximations and may change with new fossils or methods.

Carnivore165.3–161.5 MaMonolophosauridae

Evidence-backed summary

For Monolophosaurus, the PBDB records the taxonomic attribution as Zhao and Currie (1994).

The PBDB places it in Allosauroidea, and the catalogue record assigns it to the family Monolophosauridae.

In the PBDB record, the reported stratigraphic range is the Callovian.

The PBDB catalogues 1 occurrence, with material from the Shishugou Formation (1). Provenance: China.

The catalogue records the type locality as “Wucaiwan Formation, Xinjiang, China”.

  • Wucaiwan Formation, Xinjiang, China

The catalogue's reference measurements are 5.0–6.0 m in length and 475–600 kg in mass — estimates, which vary with specimen and method.

  • 5.0-6.0 m
  • 475-600 kg

The record gathers 22 bibliographic references registered in the PBDB, listed below.

Records compiled on 2026-08-08

Where it lived

Fossil occurrences on today’s map and in the tectonic reconstruction.

Present-day map1 PBDB
Shishugou
PBDB occurrences
Map at the time · ~165 Ma1 PBDB
Shishugou
PBDB occurrences
Present mean latitude44.8° N
Reconstructed mean latitude48.8° N

Positions reconstructed by PBDB/GPlates, not observed; this is not an exact habitat map.

Paleobiology Database · GPlates · CC BY 4.0

Artistic 3D reconstruction

There is no approved species-specific 3D model yet. Generic anatomy will not be presented as if it were evidence.

Physical Specifications

Length
5.0–6.0 m
Weight
475–600 kg
Period
Jurassic
Time range
165.3–161.5 Ma

Discovery Information

First Discovery
1984
Described by
Zhao & Currie

Taxonomic Classification

Kingdom
Animalia
Phylum
Chordata
Class
Reptilia
Order
Saurischia
Family
Monolophosauridae
Genus
Monolophosaurus
Species
j. jiangi

Paleobiology Database · txn:64121

Data status

Taxonomic name matched to PBDB and checked on 2026-08-08.

Taxonomic linkage does not automatically validate size, mass, behaviour or appearance.

Type specimen
not documented in this catalogue
Type locality
Wucaiwan Formation, Xinjiang, China