Fossil teeth reveal an ancient thresher shark that hunted like a great white
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June 24, 2026 / Riley Black
Summary
A paleontological narrative about an ancient thresher shark species discovered through fossilized teeth in Maryland. The article describes how this prehistoric shark, identified by its unique teeth resembling those of modern great whites, likely hunted and fed similarly to great white sharks rather than modern thresher sharks. The piece blends vivid storytelling of the ancient shark's hunting behavior with scientific analysis of the fossil evidence, revealing a previously unknown evolutionary adaptation in thresher sharks.
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Key quotes
· 3 pulledThe rot must be nearby. The sticky traces of it are seemingly everywhere, loud in the water flowing through the shark's nasal passages.
She's not even that far down. Hints of something blubbery decaying along the coastal shelf had drawn her in from the more expansive waters off the ancient Maryland coast.
The teeth of the newly-described thresher shark, Alopias grandis, are not the small, curved teeth of modern threshers. They are large, triangular, and serrated — the kind of teeth that are used to bite and tear chunks out of large prey.
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