Chapada do Araripe

The chapada forms the boundary of Ceará and Pernambuco states, and forms the watershed between the Jaguaribe River of Ceará, which flows northward into the Atlantic, and the much larger basin of the São Francisco River of Pernambuco and neighboring states, which drains eastward into the Atlantic.

The Santana Formation, which is rich with fossils from the early Cretaceous, lies at the base of the chapada.

The word "Araripe" stems from the Tupi word ararype, meaning "macaw at the river" (arara, macaw + 'y, river + pe, at).

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