3.45" Cretaceous Shark (Hybodus) Dorsal Spine - Morocco

This

A complete fossil of Hybodus from Germany showing placement of spine. Image under GNU Free Documentation License
is a nice dorsal spine of the extinct Cretaceous aged shark Hybodus. These large spines helped to support the dorsal fins of the shark.

This is a really nice specimen with only one repaired crack near the tip. These spines are fragile so they are almost always fractured and most you see for sale are either heavily restored or composites.

Hybodus grew up to 2 meters in length and was thought to have been a swift, opportunistic predator. It had a streamline shape which would have made it adept at hunting down fast prey as well as two different types of teeth which would have aided in eating a wide diet. The sharper teeth would have helped it catch soft prey like fish, while the flatter teeth would have worked well to crush shelled animals like ammonites. Hybodus first appeared during the Permian and went extinct at the end of the Cretaceous period.
DETAILS
SPECIES
Hybodus sp.
LOCATION
Taouz, Kem Kem Basin, Morocco
FORMATION
Kem Kem Beds
SIZE
3.45" long
CATEGORY
ITEM
#81162
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