Serration Images (IMAGE)

Harvard University, Department of Organismic and Evolutionary Biology

Serration Images

Caption

Both are magnified images of the serrations under polarized light. Gorgonopsian serrations are made from both enamel (thinner, lighter tissue to the right) and dentine (thicker tissue to the left) and an interdental fold (black central structure that is a fold in between the serrations). This particular arrangement allows for more serrations to be tightly packed along the tooth and makes each serration more resistant to wear.

Credit

Photo credit: Megan Whitney

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