A federal homeland security official says a dinosaur skull seized from a home in Jackson Hole is related to an investigation into fossil smuggling from Mongolia. Louis Martinez of the US Homeland Security Investigations Division says he cannot release any more details because the investigation is ongoing. The Cowboy State News Network is reporting that the fossil seized in Wyoming came from a close relative of the Tyrannosaurus Rex and is worth between a $¼-million and $400-thousand. The Tarbosaurus they say lived about 70-million years ago – federal officials recently received a complete Tarbosaurus skeleton that had been sold at auction, and they arrested a Florida man for illegally importing dinosaur fossils. A US attorney for the President of Mongolia says that country welcomes the increased awareness for the illegal trade of Mongolian fossils.