Blakey, Ronald C. (2008), "Gondwana paleogeography from assembly to breakup—A 500 m.y. odyssey", Special Paper 441: Resolving the Late Paleozoic Ice Age in Time and Space, vol. 441, Geological Society of America, pp. 1–28, doi:10.1130/2008.2441(01), ISBN978-0-8137-2441-6{{citation}}: CS1 maint: work parameter with ISBN (link)