The skeleton of a Xiphactinus audax, the largest known bony fish from the Cretaceous Period which was around 83 million years ago, is on display at Hotel Tucson City Center Innsuites Conference Suite Resort. The fish is owned by PaleoSearch, Inc from Hays, Kansas in the western part of the state where it was discovered.

A.E. Araiza / Arizona Daily Star

If you're into decorating your home with antiques, why not the ultimate antique?

Fossils have become popular decorator items and a growing presence at the Tucson Gem, Mineral and Fossil Showcase.

GeoDecor, which has a showroom and fossil preparation lab in Tucson, is selling a variety of specimens suitable for framing, from palm fronds to schools of fish frozen in time.

Prices vary widely, generally ranging from $50 for a small specimen to $100,000 for a mural-size fossil, but the company has sold items for up to $200,000 at this year's show, GeoDecor CEO Tom Lindgren said.

The company quarries most of its fossils from the Green River Formation, an ancient lake system that existed in southwestern Wyoming between 45 million and 50 million years ago and has been studied since the 1800s.

GeoDecor works closely with geologists and paleontologists to advance studies of the area and has donated many fossils to the Fossil Butte National Monument and to educational institutions and museums worldwide.

GeoDecor is selling its fossils at the Mineral and Fossil Co-op, 1635 N. Oracle Road, through Feb. 17.