A triceratops skeleton that stood in a Wyoming museum for decades will be auctioned off, a rare instance of a museum-exhibited dinosaur going to the auction block just as the market for the prehistoric giants has hit record highs . The fossil, dubbed “Trey,” will be open for bidding from March 17 to 31 on Joopiter, an online auction platform founded by Grammy-winning artist and producer Pharrell Williams. It has a preauction estimate of $4.5 million to $5.5 million. Dating back more than 66