Evolution: Herbivore-Type Teeth in a Cretaceous Tuatara Relative.
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In a new study, LeBlanc and co-workers have discovered an unusually complex dentition in a fossil relative of the modern-day tuatara that features compound occlusal surfaces, thick and prismatic enamel, and a novel enamel-to-bone tooth attachment. This finding suggests that complex dentitions arose independently in several reptilian lineages.
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