The Santana Formation, which is rich with fossils from the early Cretaceous, lies at the base of the chapada. The Araripe manakin (Antilophia bokermanni), a bird only described in 1998, is endemic to Chapada do Araripe.
The Santana Formation, which is abundant in fossils from the early Cretaceous, lies at the base of the chapada. The Araripe manakin (Antilophia bokermanni), a bird only described in 1998, is exclusive to Chapada do Araripe.