Outline: a typical ornithopod

Kita-ama Fm., JapanNamed 2021

Yamatosaurus

"Yamato lizard"

Type species Yamatosaurus izanagii

Lived
72 to 66 million years ago, Late Cretaceous
Diet
Herbivore
Group
Ornithopods, Hadrosauridae
Found in
Japan
Named by
Kobayashi et al. 2021

Where its fossils were found

The evidence

Today

1 find

70 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Yamatosaurus

What it was like

Yamatosaurus was a duck-billed plant eater, known from part of the jaw, teeth and some other bones. It was an early member of the hadrosaur family.

Its world

It lived about 72 to 66 million years ago, at the end of the Late Cretaceous, in what is now Japan. Its bones come from the Kita-ama Formation, rocks laid down in the sea, on an island.

How it was found

Kobayashi and colleagues named Yamatosaurus in 2021, from a single find. Its name refers to an old name for Japan.

Close relatives

Other members of Hadrosauridae

Sources: WikidataNamed in: Y. Kobayashi, R. Takasaki, and K. Kubota, A. R. Fiorillo. 2021. A new basal hadrosaurid (Dinosauria: Ornithischia) from the latest Cretaceous Kita-ama Formation in Japan implies the origin of hadrosaurids. Scientific Reports 11:8547:1-15