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Re: Ornithischian tracksite from the Early Jurassic in China



That article is from 2012, not 2013
Free PDF here:
http://onlinelibrary.wiley.com/doi/10.1111/j.1755-6724.2012.00606.x/pdf

Some pics here (in Spanish sorry):
http://www.dinoastur.com/2012/05/15/shenmuichnus-youngteilhardorum/

------------------------------------------
Jose Ignacio Ruiz-Omenaca
Museo del Jurasico de Asturias (MUJA)
E-33328 Colunga, Spain
www.dinoastur.com
www.museojurasicoasturias.com
www.aragosaurus.com
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> To: dinosaur@usc.edu
> Subject: Ornithischian tracksite from the Early Jurassic in China
>
> From: Ben Creisler
> bcreisler@gmail.com
>
> A new paper on the Chinese Acta Geologica Sinica site. The pdf link is
> not working for now.
>
> LI Jianjun,  Martin G. LOCKLEY,  ZHANG Yuguang,  HU Songmei,
> MATSUKAWA Masaki &  BAI Zhiqiang (2013)
> An Important Ornithischian Tracksite in the Early Jurassic of the
> Shenmu Region, Shaanxi, China.
> Acta Geologica Sinica 86(1):1-10
> http://www.geojournals.cn/dzxben/ch/reader/view_abstract.aspx?file_no=201201001&flag=1
>
>
> A large track site with multiple, well-preserved trackways of an Early
> Jurassic quadrupedal ornithischian dinosaur is the first report of
> Moyenisauripus-like trackways from Asia, herein named Shenmuichnus
> youngteilhardorum. The tracks occur in a clastic fluvial sequence in
> the Fuxian Formation in Shenmu County, Shaanxi Province, which is in
> the same general region as the discovery site of Sinoichnites,the
> first dinosaur track reported from China. Based on size and
> morphology, it is likely that Sinoichnites, which is now lost, also
> represents an ornithischian. The Shenmuichnus youngteilhardorum
> trackways show two modes of preservation: the first representing
> deeper tracks, with sediment rims, results in Deltapodus-like tracks,
> with indistinct pes digit traces and sub-circular manus traces, the
> second produces Moyenosauripus-like tracks, with clear tridactyl and
> pentadactyl digit traces in the pes and manus respectively. Thus the
> Shenmu trackways play a key role in resolving globally significant
> ichnotaxonomic problems surrounding the nomenclature of Sinoichnites,
> Moyenosauripus, Deltapodus and other named (Ravatichnus) and unnamed
> trackways from Asia, Africa and Europe. In addition they shed
> important light on the paleogeographical and paleoecological
> distribution of quadrupedal ornithischians in the Early Mesozoic. The
> track site has been the focus of a major excavation to transfer the
> trackways from their original remote location to the new Shenmu
> Museum, in Shenmu City. Other tracksites in the area which reveal
> Anomoepus, Grallator and the Deltapodus morphotype, together with
> Shenmuichnus and plant fossil evidence, suggest an Early Jurassic age
> for the tracksite.