These plates and spines were fused to the underlying bones

lipless jaw

Approximate measurements of Diplodocus: Scale 1:72 - (3 pieces)

suggesting that it spent most of its time on dry land

Melanorosaurus readi Scale:1:20 These plates and spines wereMelanorosaurus readi was a basal sauropodomorph dinosaur from the Late Triassic , specifically the Norian stage (approximately 220210 million years ago) , that inhabited southern Gondwana , in what is now South Africa . It has traditionally been considered one of the largest and most robust prosauropods , and occupies a key position in the evolutionary transition between early bipedal sauropodomorphs and the large quadrupedal sauropods of the