Dinosauria›Reptilia
Silhouette of Allosaurus jimmadseni

Allosaurus Allosaurus jimmadseni Chure et al. 2006

/ˌæləˈsɔːrəs/
Late Jurassic · 157.9–143.1 Mya

Key Statistics

Diet
carnivore
Locomotion
bipedal
inferred from clade

Overview

Allosaurus jimmadseni is a theropod dinosaur known from the Late Jurassic, roughly 157.9–143.1 million years ago. It was a carnivore. It was named by Chure et al. 2006. The species is represented by 7 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~24%
fragmentary record
Confirmed
Inferred
Based on 7 recorded occurrences in the Paleobiology Database.

Geologic Time

Where Allosaurus jimmadseni sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Allosaurus
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

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

same–clade
Juravenator
Juravenator starki
View profile →
same–clade
Sciurumimus
Sciurumimus albersdoerferi
View profile →
same–clade
Veterupristisaurus
Veterupristisaurus milneri
View profile →
same–clade
Elaphrosaurus
Elaphrosaurus bambergi
View profile →