1) Family mylodontidae 2) Mammal family 
Mylodontidae is a family of extinct mammals within the order of Pilosa and suborder Folivora living from approximately 23 mya—11,000 years ago, existing for approximately {Mya|23-0.11|million years}. This family of ground sloths is related to the other families of extinct ground sloths, Megatheriidae and Nothrotheriidae. The only extant families...
[n] - extinct South American edentates
family Mylodontidae noun extinct South American edentates