Thomashuxleya was about  in length and weighted an estimated , with a heavy body and strong limbs. Its large skull had 44 teeth in its jaws, including large canines which may have been used to dig around in earth.
The Thomashuxleya was approximately  long and weighed an estimated  pounds, with a robust build and powerful limbs. Its large skull housed 44 teeth in its jaw, including prominent canines that might have been employed for digging into the ground.