The nothrotheres have recently been moved from the tribe Nothrotheriini or subfamily Nothrotheriinae within Megatheriidae to their own family , Nothrotheriidae .
Nothrotheriidae is a family of extinct ground sloths that lived from approximately 11.6 mya -- 11,000 years ago , existing for approximately 11.49 million years .
The nothrotheres have recently been moved from the tribe Nothrotheriini or subfamily Nothrotheriidae within Megatheriidae to their own family , Nothrotheriidae .
Nothrotheriidae is a family of extinct ground sloths that lived from approximately 11.6 mya -- 11,000 years ago , existing for approximately 11.49 million years .