Reconstruction of Western Pangaea, similar to “Bullard's Fit” (black lines are modern day coastlines, except of the straight lines bordering North America to the south and Europe + Anatolia to the east):

• Stampfli, Gérard. Classic fit of Pangea by Bullard. Université de Lausanne: Institut de géologie et paléontologie. Archived from the original on 2014-09-15. Retrieved on 2010-10-21.
• Bullard, E.C.; Everett, J.E.; Smith, A.G. (1965年) "The fit of the continents around the Atlantic" in Blackett, P.M.S.; Bullard, E.C.; Runcorn, S.K. , ed. 《 A Symposium on Continental Drift (Oct. 28, 1965)》、​Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences、​258、​The Royal Society、​pp. 41–51
• Nowadays, there is a better fit between Greenland and Norway.
  • Torsvik, T.H. (2001). "Reconstructions of the Continents Around the North Atlantic at About the 60th Parallel". Earth Planetary Science Letters 187: 55–69. Archived from the original on 2012-07-03. Retrieved on 2010-10-21.