Xiphactinus audax | Monster Cretaceous Fossil Fish | Niobrara Chalk Formation, Kansas Formation The larger fragments are unidentified

The larger fragments are unidentified but it is likely that there are turtle and crocodilian bones in this rock

The segments exhibit minimal to no spine formation

Inside the nodule

It commonly forms in well-defined hexagonal crystals and can be found both as individual points and clustered formations

and then polishing to a high gloss

Xiphactinus audax | Monster Cretaceous Fossil Fish | Niobrara Chalk Formation, Kansas Formation The larger fragments are unidentifiedXiphactinus audax 87 and 82 million years ago during the Coniacian, Santonian, and Campanian stages of the Late Cretaceous Niobrara Chalk Formation, Kansas Measures approximately 12 feet long by 5. 5 feet wide Xifactinus was a huge, terrifying carnivorous bony fish that hunted the Western Interior Seaway of North America during the Cretaceous period. While fossils of Xiphactinus can be found in many locations around the world from Europe to Australia,