''Jiutaisaurus'' (meaning " Jiutai lizard") is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

sauropod Sauropoda (), whose members are known as sauropods (; from '' sauro-'' + '' -pod'', 'lizard-footed'), is a clade of saurischian ('lizard-hipped') dinosaurs. Sauropods had very long necks, long tails, small heads (relative to the rest of their bo ...

dinosaur Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is t ...

from the

Quantou Formation The Quantou Formation is a Cretaceous Period (Mesozoic Era) geologic formation in China. It is primarily Albian in age. It has been explored for its potential as a tight oil reservoir. Dinosaur remains are among the fossils that have been recove ...

Jilin Jilin (; alternately romanized as Kirin or Chilin) is one of the three provinces of Northeast China. Its capital and largest city is Changchun. Jilin borders North Korea (Rasŏn, North Hamgyong, Ryanggang and Chagang) and Russia (Prim ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

. ''Jiutaisaurus'' was a

which lived during the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of th ...

. The

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

, ''Jiutaisaurus xidiensis'', was described by Wu ''et al.'' in 2006, and is based on eighteen

vertebra The spinal column, a defining synapomorphy shared by nearly all vertebrates,Hagfish are believed to have secondarily lost their spinal column is a moderately flexible series of vertebrae (singular vertebra), each constituting a characteristic ...

e.Dinosaur Mailing List entry which announces the genus
/ref> It probably lived alongside ''

Changchunsaurus ''Changchunsaurus'' (meaning " Changchun lizard") is an extinct genus of small herbivorous dinosaur from Early Cretaceous deposits of Gongzhuling, Jilin, China. It is the first named dinosaur genus from Jilin. Description ''Changchunsaurus'' ...

'' and ''

Helioceratops ''Helioceratops'' is a genus of herbivorous neoceratopsian dinosaur from the Middle Cretaceous of China. Discovery and naming In 2000 and 2002, at the Liufangzi site of China's eastern Jilin province, excavations took place during which the ...

''.

References

Macronarians Cretaceous dinosaurs of Asia Fossil taxa described in 2006 {{Sauropodomorph-stub