Moreover, Paul argued that Tyrannosaurus might be separated into 3 unique species based on the shape of knob-like bumps (‘postorbital bosses’) powering the eyes. Paul also argued that previous investigate concluding that Tyrannosaurus only includes 1 species (T. rex) has merely assumed that all Tyrannosaurus skeletons are only one species, https://zooxxx47037.blogozz.com/21669964/a-simple-key-for-zoo-free-unveiled