Book of Dragons

Thunderpede

The jackhammer-like forelegs of this ruthless Boulder Class bruiser can pulverize a massive boulder in seconds, and a human even faster. If you hear the pitter-patter of dragon feet in battle I would run. It has 3 pair of legs, 2 huge clawed forearms, small spines along it's back, 2 small wings, and horn on chin and nose. 

Thunderpedes aren't very stealthy because their feet make a loud 'pitter-patter' noise when they are walking (or running), which gives you a chance to escape. The soft belly of the Thunderpede could be considered its weak spot, as it is not as well armored and can be attacked without as much effort. 

The Thunderpede has a noticeable bright red back, wings, and arms. Along with a white belly and light blue legs. 

Titan Thunderpedes are dark orange in color. Their scales show up more prominently and there are a few brown stripes along its back. They appear to have strong, hard plates on their chest in between their massive forearms with three razor sharp claws. Titan Thunderpedes have three large canines on their lower jaw and spikes on the top of their snout, neck and tail. They also have fairly small wings. 

It can use its strong forearms to attack or defend. These limbs are incredibly muscular and they possess three massive, sharp claws on each one. They use them to pulverize large boulders into fine, small bits, giving it its position in the Boulder Class. They were also used to build defenses by crushing boulders. 

The Thunderpede egg is a dark brown and rough spherical egg. The base of the egg appears to be cracked and a reddish glow that resembles lava can be seen from beneath the fragments of shell.