Pronunciation: (nō"tō-ung'gyu-lit, -lāt"), [key]
one of the herbivorous, hoofed mammals of the extinct order Notoungulata, best known from the Paleocene to the Pleistocene Epochs of South America.
belonging or pertaining to the Notoungulata. Also,notungulate.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.