Qijianglong
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Qijianglong Temporal range: Late Jurassic |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Dinosauria |
| Order: | Saurischia |
| Suborder: | †Sauropodomorpha |
| Family: | †Mamenchisauridae |
| Genus: |
†Qijianglong Xing et al., 2015 |
| Type species | |
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Qijianglong guokr Xing et al., 2015 |
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Qijianglong is a monospecific genus of herbivorous mamenchisaurid sauropod dinosaur of the Late Jurassic of China.
A vertebra of Qijianglong was first discovered in the early 1990s by farmer Cai Changming of Heba village, Sechuan, in his backyard. Work at a nearby construction site at Qijiang District uncovered a rich fossil quarry in 2006. Its excavation caused an examination of the earlier find which led to the discovery of a skeleton. In 2015, the type species Qijianglong guokr was named and described by Xing Lida (China University of Geosciences), Tetsuto Miyashita (University of Alberta), Zhang Jianping, Li Daqing, Ye Yong (Zigong Dinosaur Museum), Toru Sekiya (Fukui Prefectural Dinosaur Museum), Wang Fengping and Philip John Currie. The generic name combines the district Qijiang with Mandarin long, "dragon". The specific name guokr, "nutshell", is that of a Chinese scientific social network.
The holotype QJGPM 1001 was found in a layer of the Suining Formation which dates from the Late Jurassic and is perhaps Oxfordian in age. It consists of a partial skeleton with skull. It includes the rear of the skull, a partial right lower jaw, a complete series of seventeen neck vertebrae, the first six back vertebrae, ribs, the probable tenth tail vertebra, a series of twenty-eight rear tail vertebrae, chevrons, the left pubic bone and two upper pedal phalanges. It likely represents a juvenile individual, large but immature.
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