'Dueling Dinosaurs' to sell at NYC auction

'Dueling Dinosaurs' skeletons to be auctioned in NYC for estimated $7M to $9M

Dueling Dinosaurs Auction

In this Thursday, Nov. 14, 2013, photo, the lower leg of a c

Dueling Dinosaurs Auction

In this Thursday, Nov. 14, 2013, photo, a model that recreat

Dueling Dinosaurs Auction

In this Thursday, Nov. 14, 2013, photo, Clayton Phipps point

Dueling Dinosaurs Auction

In this Thursday, Nov. 14, 2013, photo, the jaw and skull of

Dueling Dinosaurs Auction

In this Thursday, Nov. 14, 2013, photo, the skull of a cerat

Dueling Dinosaurs Auction

In this Thursday, Nov. 14, 2013, photo, fossilized skin with

Dueling Dinosaurs Auction

In this Thursday, Nov. 14, 2013, photo, Clayton Phipps poses

Dueling Dinosaurs Auction

In this Thursday, Nov. 14, 2013, photo, Claws of the nanoty

Dueling Dinosaurs Auction

In this Thursday, Nov. 14, 2013, photo a nanotyrannus lancen

Dueling Dinosaurs Auction

In this Aug. 19, 2006 photo provided by Bonham's, people wor

NEW YORK (AP) -- Two fossilized dinosaur skeletons found on a U.S. ranch in 2006 are going on the auction block in New York City. They're expected to bring between $7 million and $9 million.

The nearly complete skeletons are described as the "Dueling Dinosaurs." The sellers say the dinosaurs -- one a plant eater, the other a meat eater -- appear to be locked in mortal combat.

They're being sold as one lot at Bonhams auction house on Tuesday.

The sellers believe one may be a close relative of Tyrannosaurus rex. The other may be a new species similar to Triceratops.

They hope a philanthropist buys them and donates them to a public institution.