Corda Formation

The Corda Formation consists largely of red sandstone, with very fine to medium grain size, rich in zeolites and iron oxide. Where whinstones^{[clarification needed]} are overlaying fragments of this rock are also present. Typical structures of wind dunes (cross bedding, ripples, and grain flow) are common. This is consistent with deposition in a desert system.^[1]

• List of dinosaur-bearing rock formations
• Sauropod tracks
• Romualdo Formation, contemporaneous fossiliferous formation of the Araripe Basin
• Itapecuru Formation, contemporaneous fossiliferous formation of the São Luis and Parnaíba Basins

• Alves, Y.M (2010), "Report on the Upper Permian and Lower Cretaceous fossiliferous localities vertebrates-bearing in the central north of Tocantins State, Brazil" (PDF), Brazilian Geographical Journal: Geosciences and Humanities research medium, Uberlândia, 1 (2): 372–386, retrieved 2019-02-16
• Leonardi, Giuseppe (1994), Annotated Atlas of South America Tetrapod Footprints (Devonian to Holocene) with an appendix on Mexico and Central America, Ministerio de Minas e Energia - Companhia de Pesquisa de Recursos Minerais, Geological Service of Brazil, pp. 1–248, retrieved 2019-03-25
• Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2, retrieved 2019-02-21{{citation}}: CS1 maint: publisher location (link)