Bactrosaurus johnsoni
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johnsoni
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(back-troh-sor-uhss)
"club lizard"
Describer Gilmore, 1933
Also Known As --
Type of Species johnsoni
Order Ornisthischia
SubOrder Ornithopoda
InfraOrder Iguanodontia
Micro-Order --
Family Hadrosauridae
Size 20 feet (6 meters) long
Period Late Cretaceous, 80 million years ago
Fossilsite Mongolia, China
Diet Herbivore
Bactrosaurus johnsoni lived during the Late Cretaceous Period about 80 million years ago, in what is now Mongolia, China. Bactrosaurus j. is one of the earliest crested duckbill dinosaurs. This herbivore was discovered during an expedition from the American Museum of Natural History in 1920. Bactrosaurus j. resembles recent duckbill dinosaurs that have been discovered in North America. This resemblance supports the theory that dinosaurs migrated between Asia and North America across a land connection that now is under water.
