PACHYDERMATA, hoofed animals with thick skins and non-ruminant, such as the elephant and the hog.
"The Nuttall Encyclopaedia" by Edited by Rev. James Wood
It and the peccary are the only two Pachydermata, or thick-skinned animals, indigenous to the southern continent.
"The Western World" by W.H.G. Kingston
A fossil extinct quadruped belonging to the order Pachydermata, resembling a pig.
"Principles of Geology" by Charles Lyell