Each Frilled Shark Tooth Has Three Needle-Sharp Cusps

Every tooth splits into three razor-like points.

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The distinctive trident shape makes fossil identification of the species relatively straightforward.

Rather than a single cutting edge, each frilled shark tooth forms a trident with three slender cusps. With roughly 300 teeth arranged in multiple rows, the total number of pointed tips reaches into the hundreds.

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This tri-pointed configuration increases the probability of piercing soft-bodied prey in the instant of contact. In the deep sea, where opportunities are rare, redundancy improves survival odds.

The multiplication of sharp points across hundreds of teeth creates a dental field that resembles industrial barbed wire more than typical shark dentition. It is a structural exaggeration of the predator-prey arms race.

Source

Florida Museum of Natural History

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