Outline: a typical ornithopod

Snow Hill Island Fm., AntarcticaNamed 2013

Trinisaura

"Trini's lizard"

Lived
84 to 72 million years ago, Late Cretaceous
Diet
Herbivore
Group
Ornithopods
Found in
Antarctica
Named by
Coria et al. 2013

Where its fossils were found

The evidence

Today

1 find

80 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Trinisaura

What it was like

Trinisaura was a small, two-legged plant eater from the elasmarians, a group of southern ornithopods. It is known from a partial skeleton.

Its world

It lived in the Late Cretaceous in Antarctica. The land was forested and much warmer than today. Its bones come from the Snow Hill Island Formation, and other dinosaurs from the region include the plant eater Morrosaurus, the armored Antarctopelta and the hunter Imperobator.

How it was found

Coria and colleagues named it in 2013. The name honors the first Argentine woman geologist to work in Antarctica.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Elasmaria

Sources: WikidataNamed in: R. A. Coria, J. J. Moly, and M. Reguero, S. Santillana, S. Marenssi. 2013. A new ornithopod (Dinosauria; Ornithischia) from Antarctica. Cretaceous Research 41:186-193