dentition

Imagine a walrus-like creature with dentition remarkably similar to modern walruses: A quartet of post-canine teeth, a large lower canine tooth and a short, fused vertical midline on their lower jaw.

Using the novel technique, the research team tried to determine the closest fit of the teeth's appearance to other dinosaurs with well-known dentition.

“He still has a full dentition. Healthy and happy.”

The fossil dolphin’s dentition was unlike anything seen in living cetaceans.

In a study published Thursday in Science, researchers posit that Tyrannosaurs and related dinosaurs kept their dagger-like dentition hidden behind lip-like tissue.