From the fossil-bone caverns in Wellington Valley, in 1830, were sent
to Professor Owen several bones which belonged, as it turned out, to
gigantic kangaroos, immensely larger than any existing species; to
a kind of wombat, to formidable dasyures, and several other genera.
It also appeared that the bones, which were those of herbivores, had
evidently belonged to young animals, while those of the carnivores
were full-sized; a fact which points to the relations between the two
families having been any thing but agreeable to the herbivores.