Xiphactinus audax | Monster Cretaceous Fossil Fish | Niobrara Chalk Formation, Kansas Turtle Entire schools of Priscacara have

Entire schools of Priscacara have been found fossilized together

alta was shorter and relatively wider

Agate generally forms by the deposition of silica from groundwater in hollow cavities of volcanic rocks

8" around and stretches

Stunning Fluorescent Wyoming Youngite Agate Guernsey

Xiphactinus audax | Monster Cretaceous Fossil Fish | Niobrara Chalk Formation, Kansas Turtle Entire schools of Priscacara haveXiphactinus 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,