mapinguari vs mylodontid

mapinguari and mylodontid both are nouns.

Word	Noun	Adjective	Verb	Adverb
mapinguari	Yes	No	No	No
mylodontid	Yes	No	No	No

As nouns, mylodontid is a hypernym of mapinguari; that is, mylodontid is a word with a broader meaning than mapinguari:

mapinguari: supposed human-sized sloth-like creature reportedly sighted by Indians in the Amazon rain forest
mylodontid: a variety of extinct edentate

mapinguari (noun)	mylodontid (noun)
supposed human-sized sloth-like creature reportedly sighted by Indians in the Amazon rain forest	a variety of extinct edentate