 Stegosaurus did have very short fore limbs , in relation to its hind legs . Furthermore , within the hind limbs , the lower section ( comprising the tibia and fibula ) was short compared with the femur . This suggests it could not walk very fast , as the stride of the back legs at speed would have overtaken the front legs , giving a maximum speed of 6 – 7 km / h ( 3 @.@ 7 – 4 @.@ 3 mph ) . 
