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 .Eutatus at Fossilworks.org
Taxonomy Eutatus was named by Gervais (1867). The type species is E. seguini. It was assigned to Dasypodidae by Carroll (1988).R. L. Carroll. 1988. Vertebrate Paleontology and Evolution. W.H. Freeman and Company
Fossil distribution The fossil remains are confined to Argentina and have been found in the Santacrucian Santa Cruz Formation,Coy Inlet at Fossilworks.org Ensenadan Miramar Formation,Punta Hermengo at Fossilworks.org and the Lujanian Luján Formation.Paso Otero-Pardo at Fossilworks.org
Palaeobiology The overall masticatory apparatus morphology of Eutatus suggests that it was adapted for browsing. Based on carbon isotope ratios, however, it is thought to have been an herbivore that fed on grasses.
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