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Mr. Lindgren has offered and sold fossil specimens on the international auction market since 2002, and to discerning private collectors at international fossil and mineral shows since the mid-1980’s. He has appeared on numerous television programs such as Pawn Stars, Designing for the Sexes, Christopher Lowell, QVC and Cash and Treasures.

Mr. Lindgren's passion for natural history grew from a high school field trip in which student labor was instrumental in saving a Native American archaeological site from the ravages of erosion due to dam development. Over a nearly thirty-year period as a self-taught paleontologist, he has acquired in-depth field and lab experience in fossils, as well as extensive knowledge in the valuation of fossils, minerals and a wide variety of natural history items.

Mr. Lindgren has established an extensive worldwide network of contacts through which he is constantly informed of the availability of new and interesting fossil and mineral specimens, materials and products. GeoDecor represents the culmination of Thomas Lindgren’s life’s work, offering the world’s most desirable fossil and mineral specimens to designers, collectors and museums.