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n. The typical genus of the family Megatheriidæ, containing huge extinct sloths larger than a rhinoceros.

n. [lowercase] An animal of this genus.

n. type genus of the Megatheriidae

"We are more surprised by finding such gigantic proportions in an animal called the megatherium, which ranks in an order now assuming much humbler forms -- the edentata -- to which the sloth, ant-eater, and armadillo belong."

mammal genus   

plesiosaurus    congener    turtleback    ichthyosaurus    foul-up