I know that tooth shape depends on where it is located in the sharks jaw. When looking closely at the teeth I noticed not just different blade characteristics, but also differences in the root and cusps. On the larger tooth the cusps are much less pronounced. As for the roots, one has a “u” shape and the other a “v” shape. My intuition tells me they are from different stages of evolution of the Angustidens shark, but I don’t know. Are thes differences just a result of the size of shark and tooth position?