A Stegosaurus skeleton dubbed "Apex" was auctioned off by Sotheby's Wednesday for $44.6 million, making it the most expensive fossil ever sold.

A Stegosaurus skeleton dubbed "Apex" was auctioned off by Sotheby's Wednesday for $44.6 million, making it the most expensive fossil ever sold.

A 150-million-year-old, 20-foot-long Stegosaurus skeleton that is nearly complete sold at an auction for a record $44.6 million on Wednesday.

A Stegosaurus skeleton has become the most valuable fossil ever sold at auction, being snapped up for $44.6 million in New York.

The mounted skeleton of a stegosaurus dating back to the late Jurassic period sold at the Sotheby’s auction house for $44.6 million.

The dinosaur fossil of a Stegosaurus nicknamed Apex fetched 10 times its estimate at a Sotheby's auction on Wednesday.

The largest skeletal remains uncovered yet of a Stegosaurus was sold for $44.6m on Wednesday at Sotheby’s in New York, setting record as the most valuable dinosaur fossil ever auctioned.

Apex the Stegosaurus was sold for $44.6 million at auction Wednesday, breaking the record for most expensive dinosaur fossil.

A nearly perfect, 150 million-year-old Stegosaurus fossil named Apex will soon hit the auction block — and is expected to fetch as much as $6 million.

The largest stegosaurus skeleton ever found is expected to fetch millions of dollars at auction in New York next week, likely fueling objections from paleontologists.