Bactrosaurus

Bactrosaurus Temporal range: Late Cretaceous (Cenomanian – Santonian) 96–85 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Skeleton on display at the Central Museum of Mongolian Dinosaurs, Ulaanbaatar
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	†Ornithischia
Clade:	†Neornithischia
Clade:	†Ornithopoda
Clade:	†Hadrosauromorpha
Genus:	†Bactrosaurus Gilmore, 1933
Type species
†Bactrosaurus johnsoni Gilmore, 1933
Other species
†B. kysylkumensis? (Riabinin, 1931 [originally Cionodon])
Synonyms
"Bakesaurus" Zhou, 2005 (nomen nudum) Cionodon kysylkumensis? Riabinin, 1931

Bactrosaurus (/ˌbæktrəˈsɔːrəs/; meaning "Club lizard," "baktron" = club + sauros = lizard) is a genus of herbivorous hadrosauroid dinosaur that lived in Asia during the Late Cretaceous, from about 96 to 85 million years ago. The position Bactrosaurus occupies in the Cretaceous makes it one of the earliest known hadrosauroids, and although it is not known from a full skeleton, Bactrosaurus is one of the best known of these early hadrosauroids, making its discovery a significant finding.