Fossil Fish Skull (Xiphanctinus Audax, Cretaceous) - Niobrara Formation, Kansas

Fossil Fish Skull (Xiphanctinus audax, Cretaceous) - Niobrara Formation, Kansas

This sinister looking skull once belonged to a predatory fish that dominated the Western Interior Seaway known as Xiphactinus which was much longer than any bony fish of today. The beast is represented here by just a skull and some post-cranial material, but the point gets across nonetheless.

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