Xiphactinus audax | Monster Cretaceous Fossil Fish | Niobrara Chalk Formation, Kansas Formation The segments exhibit minimal to

The segments exhibit minimal to no spine formation

testis: 20 inches

semicircular cephalon (head shield) has a clearly defined glabella that narrows toward the front

and then polishing to a high gloss

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

Xiphactinus audax | Monster Cretaceous Fossil Fish | Niobrara Chalk Formation, Kansas Formation The segments exhibit minimal toXiphactinus 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,