Outline: a typical ankylosaur

Kaiparowits Fm., UtahNamed 2018

Akainacephalus

"thorn head"

Type species Akainacephalus johnsoni

Lived
84 to 72 million years ago, Late Cretaceous
Diet
Herbivore
Group
Ankylosaurs, Ankylosauridae
Found in
United States
Named by
Wiersma and Irmis 2018

Where its fossils were found

The evidence

Today

1 find

80 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Akainacephalus

What it was like

Akainacephalus was an ankylosaur, a low, armored plant eater with a club on its tail. Its skull was covered in spiky, cone-shaped bumps. It was more like Asian ankylosaurs than its North American neighbors, which suggests its ancestors came from Asia.

Its world

It lived in the Late Cretaceous, in what is now Utah. It comes from the Kaiparowits Formation, where it shared the land with the tyrannosaur Teratophoneus, the horned Kosmoceratops and Utahceratops, and the duckbill Gryposaurus.

How it was found

Wiersma and Irmis named Akainacephalus in 2018. The type species is Akainacephalus johnsoni.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Ankylosauridae

Sources: WikidataNamed in: J. P. Wiersma and R. B. Irmis. 2018. A new southern Laramidian ankylosaurid, Akainacephalus johnsoni gen. et sp. nov., from the upper Campanian Kaiparowits Formation of southern Utah, USA. PeerJ 6(e5016)