1) Edentate 2) Pleistocene mammal 
Mylodon is an extinct genus of giant ground sloth that lived in the Patagonia area of South America until roughly 10,000 years ago. ==Taxonomy== Mylodon`s close relatives include the giant ground sloths of the genera Glossotherium and Paramylodon. The latter genus has often been confused with Glossotherium but Paramylodon is a distinct genus that....
• (n.) An extinct genus of large slothlike American edentates, allied to Megatherium.
Myl'o·don noun [ Greek ... a mill + 
The mylodon is a genus of extinct edentate mammalia. Their remains have been found in South America. It was a herbivore terrestrial animal.
[n] - large (bear-sized) extinct edentate mammal of the Pleistocene in South America
noun large (bear-sized) extinct edentate mammal of the Pleistocene in South America