Twilight Skye of the New Papers

[MKIRKALDY@aol.com]

A comparison between dinosaur footprints from the Middle Jurassic of the  
Isle of Skye, Scotland, UK, and Shell, Wyoming, USA 
Authors: Clark, N. D.  L.1; Brett-Surman, M. K.2
Source: Scottish Journal of Geology, Volume 44,  Number 2, 2008 , pp. 
139-150(12)
Publisher: Geological Society Publishing  House
Abstract:
Measurements of Middle Jurassic tridactyl dinosaur tracks  from the 
Bathonian, Lealt Shale, Valtos Sandstone, Duntulm and Kilmaluag  formations of 
the Isle 
of Skye, UK, are compared to the same measurements taken  for dinosaur 
footprints from the Bajocian, Gypsum Spring and the Bathonian,  Sundance 
Formation 
of the Bighorn Basin, Wyoming, USA. Principal component  analysis of the data 
suggests that the smaller footprints from the Valtos  Sandstone and Kilmaluag 
formations are indistinguishable from the footprints of  the Sundance 
Formation. The single footprint from the Lealt Shale Formation is  similar to 
the 
larger footprints from the Valtos Sandstone Formation. The  footprints from the 
Duntulm and Gypsum Springs formations form distinct  groupings from all other 
footprints. Four different groupings of dinosaur  footprints can be recognized 
from the principal component analysis that may  represent at least four 
different types of dinosaurs. 
DOI:  10.1144/0036-9276/01-363
Affiliations: 1: Hunterian Museum and Art Gallery,  University of Glasgow, 
University Avenue, Glasgow, G12 8QQ, UK  (nclark@museum.gla.ac), Email: 
nclark@museum.gla.ac 2: Smithsonian Institution,  Department of Paleobiology, 
PO Box 
37012, MRC 121 Washington, DC 20013-7012, USA 
 
Mary
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