Jidapterus
| Jidapterus Temporal range: Early Cretaceous, 120 Ma | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Order: | †Pterosauria |
| Suborder: | †Pterodactyloidea |
| Clade: | †Neoazhdarchia |
| Family: | †Chaoyangopteridae |
| Genus: | †Jidapterus Dong, Sun & Wu, 2003 |
| Species: | † J. edentus |
| Binomial name | |
| Jidapterus edentus Dong, Sun & Wu, 2003 | |
Jidapterus is a genus of azhdarchoid pterodactyloid pterosaur from the Aptian-age Lower Cretaceous Jiufotang Formation of Chaoyang, Liaoning, China.
The genus was in 2003 named by Dong Zhiming, Sun Yue-Wu and Wu Shao-Yuan. The type species is Jidapterus edentus. The genus name is derived from Jílín Dàxué or "Jilin University" and a Latinised Greek pteron, "wing". The specific name means "toothless" in Latin.
The genus is based on holotype CAD-01, a nearly complete skeleton with partial skull. The skull is toothless and relatively long, with a straight and very pointed beak, and a large hole where the antorbital fenestra is joined with the nostrils. The eye sockets are small, and there is no crest along the lower jaw as seen in ornithocheiroids, although a short projection was present at the back of the skull. The wingspan of this individual was estimated to be 1.7 m (5.58 ft).[1] Its classification has been unstable; the original authors did not assign it to a group.[2] Some of the original authors later suggested it was a more basal azhdarchoid,[3] whereas another group suggested it was closer to Pteranodon and possibly the same genus as Chaoyangopterus[4] David Unwin assigned it to Tapejaridae without comment in The Pterosaurs: From Deep Time,[5] but later, in a collaboration with Lü, agreed that it belonged to another azhdarchoid group and was a close relative of Chaoyangopterus, placing both in the new family Chaoyangopteridae.[6]
References
- ↑ Dong Z., Sun Y., and Wu S. (2003). On a new pterosaur from the Lower Cretaceous of Chaoyang Basin, Western Liaoning, China. Global Geology 22(1):1-7.
- ↑ Li, J., Lü, J., and Zhang, B. (2003). "A new Lower Cretaceous sinopterid pterosaur from the Western Liaoning, China." Acta Palaeontologica Sinica 42(3):442-447.
- ↑ J. Lü, and Q. Ji. (2006). Preliminary results of a phylogenetic analysis of the pterosaurs from western Liaoning and surrounding area. Journal of the Paleontological Society of Korea 22(1):239-261.
- ↑ Xiaolin Wang, Kellner, A.W.K., Zhonghe Zhou, and de Almeida Campos, D. (2005). Pterosaur diversity and faunal turnover in Cretaceous terrestrial ecosystems in China. Nature 437:875-879.
- ↑ Unwin, D.M. (2006). The Pterosaurs: From Deep Time. Pi Press:New York, p. 273. ISBN 0-13-146308-X.
- ↑ Lü, J., Unwin, D.M., Xu, L., and Zhang, X. (2008). "A new azhdarchoid pterosaur from the Lower Cretaceous of China and its implications for pterosaur phylogeny and evolution." Naturwissenschaften,
External links
- Jidapterus in The Pterosauria