Abstract A new species of tinamou from the early-middle Miocene (Santacrusian), Santa Cruz Formation of Argentina is named. The new species is approximately 16 million year old and has an affinity with the modern genus Crypturellus based on the unique characteristics of the humerus, hence, the designation aff. Crypturellus. Fossil species and the zooarchaeological record of modern tinamous are given.
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