"Dinosaurs have become an asset class for billionaires. And the market is about as orderly and genteel as a starving T. rex."

"Dinosaurs have become an asset class for billionaires. And the market is about as orderly and genteel as a starving T. rex."

The major auction houses racked up nearly $10 billion in sales in the first half, marking one of the strongest-ever starts to the year.