Anquilosaurus up the belly
In 1906, the expedition of the American Museum of Natural History, led by Paleontologist Barnum Brown, found the petrified remains of the previously unknown reptile in Montana. Two years later, Brown published a description of this animal and gave him the name Ankilosaurus, recalling the medical term “Ankilosis”, meaning the immobility of the joints that occurs due to the pathological fusion of bones. The joints in this case often remain bent.