Hexanchiformes (Primitive Sharks) and Products | Skulls Unlimited International, Inc. 1-800-659-SKULL

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Primitive Sharks

Hexanchiformes is the order consisting of five living species of primitive sharks. Fossil sharks that were apparently very similar to modern sevengill species are known from Jurassic specimens. Hexanchiform sharks have only one dorsal fin, either six or seven gill slits, and no nictitating membrane in the eyes.


Sharpnose Sevengill Shark  (Heptranchias perlo)
Sharpnose Sevengill Shark Jaw
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