Pinacosaurus

"Plank lizard"

Generic ankylosaur body-plan outline
You 1.8 m (5.9 ft) tall
Pinacosaurus 5 m (16.4 ft) long
as long as 3 people standing fingertip to fingertip
generic ankylosaur body plan, scaled to length — not a silhouette of Pinacosaurus
Length
5 m (16.4 ft)
Period
Late Cretaceous (75–71 Mya)
Place
Asia · China · Mongolia
Food
Herbivore
Clade
Ankylosauridae Dinosauria Ornithischia Thyreophora Ankylosauria Club-tailed armored herbivores.

Pinacosaurus (meaning “Plank lizard”) is a genus of ankylosaurid thyreophoran dinosaur that lived in Asia during the Late Cretaceous (Campanian, roughly 75 to 71 million years ago), mainly in Mongolia and China.

The first remains of the genus were found in 1923, and the type species Pinacosaurus grangeri was named in 1933. Pinacosaurus mephistocephalus named in 1999, is a second possibly valid species differing from the type species in details of the skull armour. At least 24 Pinacosaurus skeletons have been found, possibly more than of any other ankylosaur. These predominantly consist of juveniles. Adult fossils have not been found in groups.

What we know

  • Named by Gilmore, 1933.
  • Body length estimated at about 5 m.
  • Fossils found in Asia and China.

What we guess

The reconstruction notes for Pinacosaurus — soft tissue, color, behavior — haven't been written up yet. Only the recorded basics above are filled in so far.