Smaller kinds with less massive armor have been found in Europe but the largest and most extraordinary members of this strange race are from North America.
STEGOSAURUS.
This extraordinary reptile equalled the Allosaurus in size, and bore along the crest of the back a double row of enormous bony plates projecting upward and somewhat outward alternately to one side and the other.

The largest of these plates situated just back of the pelvis were over two feet high, two and a half long, thinning out from a base four inches thick.

The tail was armed with four or more stout spines two feet long and five or six inches thick at the base.

In the neck region and probably elsewhere the skin had numerous small bony nodules and some larger ones imbedded in its substance or protecting its surface.

The head was absurdly small for so huge an animal, and the stiff thick tail projected backward but was not long enough to reach the ground.