NAME

Meaning - Bactrosaurus means “Club-spined lizard”
Pronounced - BACK-tra-SAWR-us
Named By - Gilmore
When Named - 1933
DIET

Herbivore (plant-eater)
SIZE

Length - 20 feet (6 m) long
Height - 4.5 ft (1.4 m) tall at the hips
Weight - 1500 kg
WHEN IT LIVED

Late Cretaceous period, about 97-85 million years ago
WHERE IT LIVED

Fossils have been found in Mongolia and China, Asia.
FOSSILS

About six fragmentary Bactrosaurus fossils have been found.
CLASSIFICATION
  • Kingdom Animalia (animals)
  • Phylum Chordata (having a hollow nerve chord ending in a brain)
  • Class Archosauria (diapsids with socket-set teeth, etc.)
  • Order Ornithischia - beaked, bird-hipped dinosaurs that were plant-eaters
  • Suborder Ornithopoda
  • Infraorder Iguanodontia - having spiked thumbs
  • Superfamily Hadrosauroidea - duck-billed dinosaurs
  • Family Lambeosaurinae - hollow-crested duckbills
  • Genus Bactrosaurus
  • Species B. johnsoni (type species named by Gilmore, 1933)
INTERESTING FACTS

Bactrosaurus was a large, plant-eating, duck-billed dinosaur. This ornithopod could walk on two or four legs. It had a long, stiff tail and tall, massive spines on its rear vertebrae (backbones).