tatydenxanto lujvo

x1=d2 is a mastodon of species x2

The mastodon's English name (and former genus name) comes from "breast-tooth" due to the unusual shape of its molars. They are not in the same family as elephants or mammoths. This is also xantrmamutu.

In notes:

x1=k1 is a tooth cavity/dental caries [demineralized site] of tooth x2=k2=d1