William Hammer of Augustana College found the new creature -- a four- to five-foot ornithischian or bird-hipped dinosaur that he believes is related to the fabrosaur or heterodontosaur.

It's the same place where Hammer and colleagues found Antarctica's first dinosaur in 1990 — the 22-foot, meat-eating Cryolophosaurus, or "frozen crested reptile."

Deformities include flat feet, hammer toes, overlapping toes, halux valgus, joint subluxation, prominent metatarsal heads, medial convexity (Charcot foot) and amputation.