106 ANIMALS OF THE PAST 
species, and from our West comes a near rela- — 
tive, Ceratosaurus, the nose-horned lizard, a _ 
queer beast with tiny fore legs, powerful, sharp- 
clawed hind feet, and well-armed jaws. A 
most formidable foe he seems, the more that 
the hollow bones speak of active movements, 
and Professor Cope pictured him, or a near 
relative, vigorously engaged in combat with — 
his fellows, or preying upon the huge but help- 
less herbivores of the marshes, leaping, biting, 
and tearing his enemy to pieces with tooth and 
claw. 
Professor Osborn, on the other hand, is in- | 
clined to consider him as a reptilian hyena, _ 
feeding upon carrion, although one can but 
feel that such an armament is not entirely in _ 
the interests of peace. ! 
Last, but by no means least, are the Stego- 
saurs, or plated lizards, for not only were they 
beasts of goodly size, but they were among the 
most singular of all known animals, singular 
even for Dinosaurs. They had diminutive 
heads, small fore legs, long tails armed on | 
either side near the tip, with two pairs of large 
spines, while from these spines to the neck 
