The Genus Megatherium refers to a group of extinct ground sloths that lived during the Pleistocene epoch. The scientific name Megatherium literally translates to "great beast," and the genus belongs to the family of Megatheriidae. There are several synonyms for the Genus Megatherium, including Megatheriopsis, Pliomegatherium, and Ocnopus. These names have come about due to changes and revisions in the classification of sloths over the years. Despite these changes, the Megatherium genus is still recognized as one of the largest and most remarkable creatures that once inhabited the earth. Megatheriums were known for their immense size, powerful limbs, and massive claws, which they used for defense and foraging.