|Statement||by W.E. Logan.|
|Series||CIHM/ICMH microfiche series -- no. 55282.|
|The Physical Object|
|Pagination||p. -225, 10 folded leaves of plates|
|Number of Pages||225|
On the foot prints occurring in the potsdam sandstone of Canada [electronic resource] /. On the Occurrence of a Track and Foot-Prints of an Animal in the Potsdam Sandstone of Lower Canada From the Quarterly Journal of the Geological Society of London for August , Vol. VII  with Owen, Prof. Description of the Impressions on the Potsdam Sandstone discovered by Mr. Logan in Lower Canada  vol. 10 #4 mf # On the foot prints occurring in the potsdam sandstone of Canada: On the history of Eozoön Canadense: Ottawa Canal Survey: Ottawa River journal, Plans des différents lacs et rivières entre le lac Huron et la rivière des Outaouais, pour accompagner les rapports géologiques du Canada pour les années On the Foot-prints occurring in the Potsdam Sandstone of Canada. Quarterly Journal of the Geological Society of London, volume 8, p. , Plates VI to VIII, #page//mode/1up Owen, R., Description of the Impressions and Foot-prints of the Protichnites from the Potsdam Sandstone of Canada. Quarterly .
Late Cambrian arthropod trackways from the Potsdam Sandstone have been known since the ’s. A site in northern New York is an outcrop of fine-grained, quartz-rich, rippled, micro-laminated. Figure Very large cross beds on the face of a quarry in Potsdam Sandstone. The size of the cross beds is similar to that of desert sand dunes. The outcrop formed a bluff on the Raquette River below the power house at Hannawa Falls when photographed by J. Reed, , p. Mudcracks and ripple marks also occur in Potsdam Sandstone. i. L. Brand, “Footprints in the Grand Canyon,” Origins 5 () ii. R. Batten and R. Dott, Evolution of the earth (New York: McGraw-Hill Book Company, ) iii. R. Dott, W. Jordan and K. Stanley, “New hypothesis of early Jurassic paleography and sediment dispersal for western United States,” American Association of Petroleum Geologists Bulletin 55 (): A Short History of Potsdam Sandstone: Around million years ago the sandy beaches that would become Potsdam sandstone were laid down as marine waters began to encroach upon the continent. As the waters continued to move towards the northwest, these beaches were submerged and then slowly covered by sediment that settled out of the sea.
POTSDAM. (FIG. 78) CLIMACTICHNITES. POTSDAM. at the present day. The tracks consist of a medial furrow, ac-companied on both sides by a large number of small indentations. The entire series of impressions is about six inches wide, and has been followed in some cases for several feet. It will be no-Several series of foot-prints of the same general nature as. "On the Footprints occurring in the Potsdam Sandstone of Canada" "On the Division of the Azoic Rocks of Canada into Huronian and Laurentian" "Considerations relating to the Quebec Group and the Upper Copper-bearing Rocks of Lake Superior" "Remarks on the fauna of the Quebec group of rocks, and the primordial zone of Canada" Work about Logan. This study focuses on the assessment of the degradation processes occurring in three sandstone infills of fossilized Late Jurassic ornithopod tridactyl footprints, found in in a coastline. Marsh EO () Description of a new species of Protichnites, from the Potsdam sandstone of New York. American Association for the Advancement of Science, Proceedings – Google Scholar Owen R () Description of the impressions and footprints of the Protichnites from the Potsdam sandstone of Canada.