Nothrotherium

Nothrotherium is an extinct genus of medium-sized ground sloth from South America (Bolivia, Brazil and the Ware Formation, La Guajira, Colombia). It differs from "Nothrotheriops" in smaller size and differences in skull and hind leg bones, but both genera can be traced back to "Hapalops", the genus which both evolved from in different ecological conditions.
Taxonomy.
"Nothrotherium" is derived from the Greek "nothros" [νωθρός], meaning "lazy" or "slothful," and "therion" [θηρίον], "beast", and the species "N. maquinense" is named after the Maquiné Grotto in Brazil, where it was found. Synonyms such as "Coelodon" occasionally cause confusion where they occur in early texts such as that of Alfred Russel Wallace's major work, "The Geographical Distribution of Animals" (1876). This genus formerly included the species "Nothrotheriops shastensis", which was later moved to "Nothrotheriops".
Description.
Analysis of a coprolite associated with a "N. maquinense" skeleton in Brazil's Gruta dos Brejoes show it to have been a browser which fed on xerophytic leaves and fruits, and it is sometimes thought to have been an inhabitant of open, peripheral forests, possibly having a semi-arboreal lifestyle, like the contemporaneous Cuban ground sloths and "Diabolotherium". Plant material in the Gruta dos Brejoes coprolite yielded a date of 12,200 ± 120 yr BP.