5.4" Xiphactinus Pre-Maxillary with Tooth - Smoky Hill Chalk, Kansas

This is a beautiful pre-maxillary upper jaw section of the huge predatory fish, Xiphactinus audax. It's 5.4" long and was collected from the Smoky Hill Chalk of Gove County, Kansas. This jaw section would have come from a large Xiphactinus in the 15 foot range. One can imagine how terrifying of a predator this fish must have been given its huge 2", dagger-like tooth. The tooth is in excellent condition and is original, not a composite.



Xiphactinus was a huge, predatory fish that lived during the Late Cretaceous. It would have been a veracious predator, growing 15-20 feet long. When alive, the fish would have resembled a gargantuan, fanged tarpon.

Xiphactinus has appeared in the BBC's Sea Monsters and National Geographic's Sea Monsters: A Prehistoric Adventure as well as being labelled a "Prehistoric Terror" in River Monsters.