tribosphenic teeth

An artist's rendering of what Pseudotribos robustus or a weasel-possum-lizard, might have looked like 165 million years ago In the November 1st, issue of Nature, a joint American and Chinese research team announced the discovery of a long dead prehistoric mammal with an interesting set of chompers. Although the teeth were very similar in form to other teeth found at the time, they actually were arranged in a "grind-cut" pattern instead of the more common "cut-grind" pattern! Upon realizing what they were looking at, some of the female researchers fainted from embarrassment. These days,…