This picture is of a Glyptodon clavipes (Owen, 1839) glyptodont fossil. It was found in Boliva. The fossil dates to the Pleistocene Epoch (1.8 million to 10,000 years ago). Named by Richard Owen (1804-1892) who is remembered as coining the term dinosaurs.
The fossil was on display in the Evolving Planet section of The Field Museum of Natural History in Chicago Illinois, USA as of August 2020.
Here is another one I saw at a special exhibit at that Museum of Natural History and Science in Cincinnati, Ohio in 2013. That fossil was found in Argentina.
https://louisvillefossils.blogspot.com/2013/08/pleistocene-glyptodon-fossil.html