Perhaps not as celebrated as its fearsome cousin, the T-rex, the Tyrannosaurus bataar is equally as frightening — and could scare up about $1 million in a public auction Sunday.

David Herskowitz, director of natural history at Heritage Auctions, talks to a reporter about the 12-foot tall, 23-foot long complete Tyrannosaurus bataar, the slightly smaller Asian counterpart ...

The Tyrannosaurus Bataar skulls were dug out of the Gobi desert and illegally smuggled out of Mongolia, federal officials say. From there, they wound up in the hands of U.S. private collectors who ...

A nearly complete skeleton of a towering Tyrannosaurus bataar is set to go on auction on Sunday (May 20). The skeleton measures some 8-feet (2.4-meters) tall and 24-feet (7.3-meters) long.

A nearly complete skeleton of a towering Tyrannosaurus bataar is set to go on auction on Sunday (May 20). The skeleton measures some 8-feet (2.4-meters) tall and 24-feet (7.3-meters) long.

A Tyrannosurus bataar skull similar to this one of a Tyrannosaurus rex at the Maryland Science Center in Baltimore is being repatriated to the government of Mongolia. (Chris Gardner | AP) The ...

70-million-year-old Tyrannosaurus bataar skeleton will be returned to Mongolia February 19, 2013 The 8-foot-tall, 24-foot-long Tyrannosaurus bataar skeleton was sold for $1.05 million at auction.

This Tyrannosaurus Battar dinosaur skeleton was on the auction block in New York but is now slated for return to Mongolia. Andrew King This 70 million-year-old Tyrannosaurus Bataar skeleton is ...

In a fossil smuggling case, Eric Prokopi of Florida has agreed to surrender the skeleton of a Tyrannosaurus bataar dinosaur, shown above, to be returned to Mongolia AP Photo/U.S Attorney Office ...

The first tyrannosaurus bataar — a six-ton carnivore also known as tarbosaurus bataar — was returned to Mongolia on May 1, 2013. The remaining fossils were the ones returned on Thursday.

A nearly complete skeleton of a towering Tyrannosaurus bataar is set to go on auction on May 20. The skeleton measures some 8 feet tall and 24 feet long. This is the first full Tyrannosaurus ...