Biology:Qiaowanlong

From HandWiki
Short description: Extinct genus of dinosaurs

Qiaowanlong
Temporal range: late Aptian, 123–113 Ma
Skeleton of Qiaowanlong kangxii.JPG
Restored skeleton
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Sauropodomorpha
Clade: Sauropoda
Clade: Macronaria
Family: Euhelopodidae
Genus: Qiaowanlong
You & Li, 2009
Species:
Q. kangxii
Binomial name
Qiaowanlong kangxii
You & Li, 2009
Qiaowanlong restored as a brachiosaurid

Qiaowanlong (meaning "Qiaowan dragon") is a genus of sauropod dinosaur. Fossils belonging to the genus were found in 2007 from the Yujinzi Basin of Gansu, China , and were described in 2009 in the Proceedings of the Royal Society B.[1][2] The remains come from a geological formation called the Xiagou Formation in the Xinminpu Group, dating to the Early Cretaceous (late Aptian stage[3]). The only known specimen consists of articulated cervical (neck) vertebrae and a right pelvic girdle, as well as several unidentified bone fragments.[4][5] Qiaowanlong was initially reported as the first brachiosaurid to have been found from China. However, later analysis found that it was more closely related to titanosauriformes like Euhelopus and Erketu.[6] It is estimated to have had a length of around 12 metres (39 ft) and would have weighed around 6 tonnes.[7] The type species is Q. kangxii.

References

  1. You, Hai-Lu; Li, Da-Qing (22 November 2009). "The first well-preserved Early Cretaceous brachiosaurid dinosaur in Asia". Proceedings of the Royal Society B: Biological Sciences 276 (1695): 4077–4082. doi:10.1098/rspb.2009.1278. PMID 19734188. 
  2. Burns, Judith (2009-09-02). "US dinosaur had Chinese cousin". BBC News. http://news.bbc.co.uk/2/hi/science/nature/8233797.stm. 
  3. Xi, Dangpeng; Wan, Xiaoqiao; Li, Guobiao; Li, Gang (2018-09-19). "Cretaceous integrative stratigraphy and timescale of China". Science China Earth Sciences 62 (1): 256–286. doi:10.1007/s11430-017-9262-y. ISSN 1674-7313. https://www.researchgate.net/publication/327813699. 
  4. Taylor, Mike (6 September 2009). "Bifid Brachiosaurs, Batman!". Sauropod Vertebra Picture of the Week. http://svpow.wordpress.com/2009/09/06/bifid-brachiosaurs-batman/. 
  5. Taylor, Mike (6 September 2009). "More on Qiaowanlong already". Sauropod Vertebra Picture of the Week. http://svpow.wordpress.com/2009/09/06/more-on-qiaowanlong-already/. 
  6. Ksepka, Daniel T.; Norel, Mark A. (22 October 2010). "The Illusory Evidence for Asian Brachiosauridae: New Material of Erketu ellisoni and a Phylogenetic Reappraisal of Basal Titanosauriformes". American Museum Novitates (3700): 1–27. doi:10.1206/3700.2. http://digitallibrary.amnh.org/dspace/bitstream/handle/2246/6087/N3700.pdf?sequence=1. 
  7. Paul, G.S., 2010, The Princeton Field Guide to Dinosaurs, Princeton University Press p. 204

Wikidata ☰ Q133111 entry