Outline: a typical early ornithischian

Chinle Fm., ArizonaNamed 2005

Krzyzanowskisaurus

Lived
237 to 206 million years ago, Late Triassic
Diet
Herbivore
Group
Early ornithischians
Found in
United States
Named by
Heckert 2005

Where its fossils were found

The evidence

Today

3 finds

220 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Krzyzanowskisaurus

What it was like

Krzyzanowskisaurus is known only from teeth. They were once thought to come from an early bird-hipped dinosaur, but similar teeth have turned out to belong to other reptiles, so it may not be a dinosaur.

Its world

It lived in the Late Triassic in what is now Arizona and New Mexico. Its teeth come from the Chinle Formation.

How it was found

Heckert named it in 2005. It honors a fossil collector.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Ornithischia

Sources: WikidataNamed in: A. B. Heckert. 2005. Krzyzanowskisaurus, a new name for a probable ornithischian dinosaur from the Upper Triassic Chinle Group, Arizona and New Mexico, USA. In A. B. Heckert & S. G. Lucas (eds.), Vertebrate Paleontology in Arizona. New Mexico Museum of Natural History and Science Bulletin 29:77-83