Stegourus elengassen

Stegouros elengassen is the only known species of the extinct genus Stegouros de is an ankylosaurus ornithischian dinosaur that lived in the late Cretaceous period, between 75 to 71 million years, from Campanian to Maastrichtian, in what is now South America.
https://www.nature.com/articles/s41586-021-04147-1?fbclid=IwAR108efmDM2yL3N7Ika76HOhhic00M8mAosMJExm4Zc87paa7giQo1x9Yp8