Taubacrex is an extinct genus of birds of the Quercymegapodiidae family from the Late Oligocene or Early Miocene of the Taubaté Basin in the state of São Paulo, Brazil. The type species is Taubacrex granivora. In the original description, Herculano Alvarenga classified it as a member of Rallidae family. It provides the earliest fossil record of gastroliths in birds of the order Galliformes

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