Dinosaurs A to Z
Huayangosauridae

Baiyinosaurus baojiensis

"Baiyin reptile"

Generic stegosaur body-plan outline
You 1.8 m (5.9 ft) tall
Baiyinosaurus 5 m (16.4 ft) long
as long as 3 people standing fingertip to fingertip
generic stegosaur body plan, scaled to length — not a silhouette of Baiyinosaurus
Length
5 m (16.4 ft)
Period
Middle Jurassic (174–163 Mya)
Place
China
Food
Herbivore
Clade
Huayangosauridae
Baiyinosaurus reconstruction by Ddinodan
Reconstruction · Ddinodan (CC-BY)

Baiyinosaurus (meaning “Baiyin reptile”) is an extinct genus of stegosaurian dinosaurs from the Middle Jurassic Wangjiashan Formation of China. The genus contains a single species, B. baojiensis, known from a partial skeleton including cranial bones. The skeletal anatomy of Baiyinosaurus demonstrates transitional features between basal thyreophorans and stegosaurs. While many stegosaurs are known from China, Baiyinosaurus is the only one currently named from Gansu Province.

What we know

  • Named by Ning et al., 2024.
  • Fossils found in China.

What we guess

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