Bradypodidae vs mammal family

Bradypodidae and mammal family both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bradypodidae	Yes	No	No	No
mammal family	Yes	No	No	No

As nouns, mammal family is a hypernym of Bradypodidae; that is, mammal family is a word with a broader meaning than Bradypodidae:

Bradypodidae (noun)	mammal family (noun)
a family of edentates comprising the true sloths	a family of mammals