But to be totally biologically correct, dermal denticles are scales. Scales came first in the evolution of the vertebrates...long before there were jaws in which to mount teeth the jawless fishes protected themselves with scales. Teeth were modified from scales, not the other way round.

And compared to both teeth and scales, hair appeared last weekend.

So congratulations to you, Ryan, on matching the tartan honoring the ancient one with the oldest of all possible vertebrate epidermal elaborations.