Dinosauria › Ornithischia › Ornithopoda › Hadrosauridae
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Huallasaurus

Huallasaurus australis (Bonaparte et al. 1984)

Late Cretaceous (Maastrichtian) · 83.6–66 Mya
Key Statistics
Diet
herbivore
Locomotion
bipedal
inferred from clade
Overview

Huallasaurus australis is an ornithopod dinosaur known from the Late Cretaceous, roughly 83.6–66.0 million years ago. It was a herbivore. It was named by (Bonaparte et al. 1984). 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 Huallasaurus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Huallasaurus
252 Mya201 Mya145 Mya66 Mya
Relationships

Part of a wider fossil web

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

predator–prey
Saurornitholestes
Saurornitholestes langstoni
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predator–prey
Tyrannosaurus
Tyrannosaurus rex
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predator–prey
Richardoestesia
Richardoestesia isosceles
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coexisted–with
Richardoestesia
Richardoestesia gilmorei
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coexisted–with
Troodon
Troodon formosus
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same–clade
Sektensaurus
Sektensaurus sanjuanboscoi
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same–clade
Telmatosaurus
Telmatosaurus transsylvanicus
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same–clade
Hypacrosaurus
Hypacrosaurus altispinus
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