What is "surameryx"

Surameryx is an extinct genus of herbivorous even-toed ungulates belonging to the extinct family Palaeomerycidae. A single species, S. acrensis, is known from the Late Miocene (between the Tortonian to Messinian, between 11.6 to 5.3 million years ago) of South America. It is one of the few northern mammals that entered South America before the Pliocene.