Description of the Impressions and Foot-prints of the Protichnites from the Potsdam Sandstone of Canada

  title={Description of the Impressions and Foot-prints of the Protichnites from the Potsdam Sandstone of Canada},
  journal={Quarterly Journal of the Geological Society of London},
  pages={214 - 225}
  • Owen
  • Published 1 February 1852
  • History
  • Quarterly Journal of the Geological Society of London
Of the extensive series of foot-prints found under the circumstances described in the preceding communication, the originals of some and good plaster-casts of more have been brought over with much labour and expense by their discoverer, Mr. Logan, and of these I have selected the best-marked and most intelligible portions for the following descriptions. 
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