The skeleton of a close relative of the Diplodocus (157.3 to 152.1 million years old), is displayed in the lobby of the Intercontinental Paris Le Grand hotel prior to being auctioned, June 6, 2019, in Paris, France. /VCG Photo

This skeleton is 12.95 meters long and 6.2 meters high. /VCG Photo

Discovered in the state of Wyoming, U.S., it will be sold on June 13 by the auction house Aguttes. /VCG Photo

Experts estimated the skeleton to be worth between 1.2 and 1.8 million euros. /VCG Photo