Dinosauria › Reptilia › Theropoda › Noasauridae
Silhouette of Masiakasaurus

Masiakasaurus

Masiakasaurus knopfleri Sampson et al. 2001

Late Cretaceous (Maastrichtian) · 72.2–66 Mya
Key Statistics
Diet
carnivore
Locomotion
bipedal
inferred from clade
Overview

Masiakasaurus knopfleri is a theropod dinosaur known from the Late Cretaceous, roughly 72.2–66.0 million years ago. It was a carnivore. It was named by Sampson et al. 2001. The species is represented by 29 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~69%
confidence from occurrence count
Confirmed
Inferred
Based on 29 recorded occurrences in the Paleobiology Database.
Geologic Time

Where Masiakasaurus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Masiakasaurus
252 Mya201 Mya145 Mya66 Mya
Relationships

Part of a wider fossil web

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

predator–prey
Triceratops
Triceratops horridus
View profile →
predator–prey
Alamosaurus
Alamosaurus sanjuanensis
View profile →
predator–prey
Edmontosaurus
Edmontosaurus annectens
View profile →
coexisted–with
Thescelosaurus
Thescelosaurus neglectus
View profile →
coexisted–with
Pachycephalosaurus
Pachycephalosaurus wyomingensis
View profile →
same–clade
Kank
Kank australis
View profile →
same–clade
Maip
Maip macrothorax
View profile →
same–clade
Joaquinraptor
Joaquinraptor casali
View profile →