Hexinlusaurus

Taxobox
name = "Hexinlusaurus"
fossil_range = Middle Jurassic
regnum = Animalia
phylum = Chordata
classis = Sauropsida
superordo = Dinosauria
ordo = Ornithischia
genus = "Hexinlusaurus"
genus_authority = Barret "et al.", 2005
subdivision_ranks=Species
subdivision=
*"H. multidens" (He & Cai, 1983 [originally "Yandusaurus multidens"] ) (type)

"Hexinlusaurus" (Barrett "et al.", 2005) is a genus of basal ornithischian dinosaur from the Middle Jurassic of China. The holotype (ZDM T6001, Zigong Dinosaur Museum, Dashanpu, People's Republic of China), consists of an almost complete, articulated skull and some postcranial material, collected from a terrestrial sandstone within the Lower Shaximiao Formation (?Bajocian) at the famous dinosaur-bearing quarries at Dashanpu. A paratype (ZDM T6002) consists of a partial skull and postcranial remains. Previously, it had been described as a species of "Yandusaurus", "Y. multidens" (He and Cai, 1983), but was reclassified as a new taxon by Barrett et al. in 2005, who diagnosed this anatomically conservative species as follows: "A small ornithischian dinosaur distinguished from all other basal ornithischians by a single autapomorphy, the presence of a marked concavity that extends over the lateral surface of the postorbital." The etymology of the genus name honors Professor He Xin-Lu (Chengdu University of Technology) + the Greek "sauros" (=lizard). "Hexinlusaurus" was a small, fleet-footed herbivore.

Other dinosaurs known from Dashanpu include the sauropod "Shunosaurus", the theropod "Gasosaurus", and the stegosaur "Huayangosaurus".

"Proyandusaurus"

Before being officially named "Hexinlusaurus", this genus was briefly known under the informal name "Proyandusaurus". This name originally appeared in an abstract attributed to Fabien Knoll, which was apparently published without his consent. [http://dml.cmnh.org/2003Sep/msg00169.html] [http://www.paleofile.com/Demo/Mainpage/Taxalist/Dinosaurs/Ornithopoda.htm]

References

*Barrett, P.M., Butler, R. J., and Knoll, F. 2005. Small-bodied ornithischian dinosaurs from the Middle Jurassic of Sichuan, China. "Journal of Vertebrate Paleontology" 25:823-834.
*cite journal |last=Butler |first=Richard J. |coauthors=Upchurch, Paul; and Norman, David B. |title=The phylogeny of the ornithischian dinosaurs|journal=Journal of Systematic Palaeontology |volume=6 |issue=1 |year=2008 |pages=1–40 |doi=10.1017/S1477201907002271
*Knoll, F. 1999. The family Fabrosauridae. In: J. I. Canudo and G. Cuenca-Bescós (Eds.): IV European Workshop on Vertebrate Palaeontology, Albarracin (Teruel, Spain), junio de 1999. Programme and Abstracts, Field guide. Servicio Publicaciones Universidad de Zaragoza, 54.
*He, X.-L. and Cai, K.-J. 1983. A new species of "Yandusaurus" (hypsilophodont dinosaur) from the Middle Jurassic of Dashanpu, Zigong, Sichuan. "Journal of Chengdu College of Geology, Supplement 1":5-14.

External links

* [http://www.users.qwest.net/~jstweet1/ornithischia.htm "Hexinlusaurus" at "Thescelosaurus"!] (under Neornithischia)