Megalodon Jaws by Houston Museum of Natural Science Like the sharks of today, megalodon's teeth needed constant replacing. The ones up front were the business end of the mouth, while the ones in the back were ready to take a broken tooth's place.
People say if t-rex and spino went head to head in a fight on land that t-rex would win. Actually spino has a better chance. His long jaw and claws give him the advantage. Also hid bigger than t-rex!!!!T-rex just has a muscular head as a weapon nothing else. Therefore spino would probably win.