Eutatus is an extinct genus of large armadillos of the family Chlamyphoridae. It was endemic to South America from the Early Miocene to Late Pleistocene, living from 17.5 Ma-11,000 years ago, with possible survival into the early Holocene (~ 7,500 BP) and existing for approximately. Based on carbon isotope ratios, it is thought to have been an herbivore that fed on grasses.

Taxonomy

Eutatus was named by Gervais (1867). The type species is E. seguini. It was assigned to Dasypodidae by Carroll (1988).

Fossil distribution

The fossil remains are confined to Argentina and have been found in the Santacrucian Santa Cruz Formation, Ensenadan Miramar Formation, and the Lujanian Luján Formation.

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