Outline: a typical theropod

Horseshoe Canyon Fm., AlbertaNamed 2009

Albertonykus

"Alberta claw"

Lived
72 to 66 million years ago, Late Cretaceous
Diet
Carnivore
Group
Theropods, Alvarezsauridae
Found in
Canada
Named by
Longrich and Currie 2009

Where its fossils were found

The evidence

Today

1 find

70 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Albertonykus

What it was like

Albertonykus was a small alvarezsaur, a bird-like theropod about the size of a chicken. It had long legs and short, stout arms with one big claw. It probably used that claw to break open rotting wood to get at insects.

Its world

It lived about 72 to 66 million years ago, near the end of the Cretaceous, in what is now Alberta, Canada. It comes from the Horseshoe Canyon Formation, where it shared the land with the tyrannosaur Albertosaurus and the duckbills Edmontosaurus and Saurolophus.

How it was found

Longrich and Currie named Albertonykus in 2009, from bones found in a bone bed of Albertosaurus.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Alvarezsauridae

Sources: WikidataNamed in: N. R. Longrich and P. J. Currie. 2009. Albertonykus borealis, a new alvarezsaur (Dinosauria: Theropoda) from the Early Maastrichtian of Alberta, Canada: implications for the systematics and ecology of the Alvarezsauridae. Cretaceous Research 30(1):239-252