Talk:Chinshakiangosaurus

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Entry of Chinshakiangosaurus into the described

At last, Chingshakiangosaurus has been officially described. [1]

[1] http://www.users.qwest.net/~jstweet1/sauropoda.htm —The preceding unsigned comment was added by 72.194.116.63 (talk) 02:47, 5 January 2007 (UTC).[reply]

I may have been hasty putting it as such on the website, but it was treated as a published name by Upchurch et al (2004) (albeit a nomen dubium) as from Dong, 1992. It may have been a mistake, as a couple of other "names in press" (published by now) were revealed in The Dinosauria or its supplementary material. Interestingly, two of the authors of the abstract calling it valid (Barrett et al., 2005), wrote the article in The Dinosauria. It might be best to leave this one alone for the time being, now that I think about it, so I'll review what I wrote as well.

Upchurch, P.M., Barrett, P.M., and Dodson, P. 2004. Sauropoda. In: Weishampel, D.B., Osmólska, H., and Dodson, P. (eds.). The Dinosauria (2nd edition). University of California Press:Berkeley 259-322.
Barrett, P.M., Upchurch, P.M., X. Xing, and X.-J. Zhao. 2005. Chinshakiangosaurus and the early evolution of herbivory in sauropod dinosaurs. Journal of Vertebrate Paleontology 25(3, suppl.):34A. J. Spencer 04:48, 5 January 2007 (UTC)[reply]

And here it is

It's an advance pub; hopefully it'll be out soon so we can get the page and volume info. Stolen from the DML:

Geological Magazine Advance publication

A re-evaluation of Chinshakiangosaurus chunghoensis Ye vide Dong 1992 (Dinosauria, Sauropodomorpha): implications for cranial evolution in basal sauropod dinosaurs PAUL UPCHURCH, PAUL M. BARRETT, ZHAO XIJIN and XU XING

Abstract Re-description of the left dentary of Chinshakiangosaurus chunghoensis reveals that it possesses an unusual combination of ?prosauropod? and ?sauropod? character states. Cladistic analysis places Chinshakiangosaurus as one of the most basal sauropods known currently. Mapping of dentary and dental characters onto the most parsimonious topologies yields insights into the sequence of acquisition of a number of feeding-related characters. For example, it seems that basal sauropodomorphs (traditional prosauropod taxa) possessed a fleshy cheek that attached to the mandible along a marked ridge, and that the same structure was present in the most basal sauropods. The early sauropod skull developed a lateral plate that reinforced the bases of the tooth crowns labially, and had wrinkled tooth enamel and a concavity on the mesial portion of the lingual part of each crown, while retaining a fleshy cheek and a relatively weak symphysis. More advanced sauropods (eusauropods) lost the cheek, perhaps in order to increase the gape of the jaws in response to a change in feeding style that involved collection of larger quantities of poor quality foliage.

J. Spencer 17:28, 17 February 2007 (UTC)[reply]