Outline: a typical theropod

Maevarano Fm., MadagascarNamed 2001

Masiakasaurus

"vicious lizard"

Lived
72 to 66 million years ago, Late Cretaceous
Diet
Carnivore
Length
about 2 m (7 ft)
Group
Theropods, Noasauridae
Found in
Madagascar
Named by
Sampson et al. 2001

Size comparison

To scale

Where its fossils were found

The evidence

Today

29 finds

70 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Masiakasaurus

What it was like

Masiakasaurus was a small two-legged meat eater about 2 meters (7 feet) long. Its front teeth stuck forward from its lower jaw, almost straight out, unlike those of any other dinosaur.

Those odd teeth may have helped it snatch small prey such as fish, lizards or insects. It had long legs and short arms.

Its world

It lived about 72 to 66 million years ago, at the end of the Cretaceous, in what is now Madagascar. Its fossils come from the Maevarano Formation.

It shared that land with the much bigger abelisaurid Majungasaurus, the titanosaur Rapetosaurus and the small feathered hunter Rahonavis.

How it was found

Sampson and colleagues named Masiakasaurus in 2001. About 29 finds are known, so much of its skeleton is well understood.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Noasauridae

Sources: WikidataNamed in: S. D. Sampson, M. T. Carrano, and C. A. Forster. 2001. A bizarre predatory dinosaur from the Late Cretaceous of Madagascar. Nature 409:504-506