More than half 'original bone material': See the T. rex skeleton that could fetch $8 million

Whoever buys Trinity had better have a big house.

A giant Tyrannosaurus rex skeleton up for auction – dug up from three sites in the U.S. – could make the ultimate ornament for a tycoon’s abode or other eye-popping display.

In all, 293 bones belonging to the dinosaur dubbed Trinity, assembled and erected into a 38-foot-long and 12.8-foot-high masterpiece, are expected to fetch $5.6 million to $8.9 million when the extinct creature's skeleton goes under the hammer at an auction house in Zurich, Switzerland, on Tuesday.

The 67 million-year-old T. rex skeleton was assembled from three specimens excavated from 2008 to 2013 in the Hell Creek and Lance Creek formations in Montana and Wyoming.

See photos of the resurrected creation:

A view of the skeleton of a Tyrannosaurus rex named Trinity, during a preview by auction house Koller at the Tonhalle Zurich concert hall, on Wednesday, March 29, 2023 in Zurich, Switzerland. A giant T. Rex skeleton that’s been dug up from three sites in the United States is going up for auction in Zurich on Tuesday, April 18, 2023 a first sale of its kind in Europe
In this photograph taken on March 28, 2023, in Zurich, a woman takes part in the installation of "Trinity" a Tyrannosaurus rex skeleton dating back 67 million years which will be auctioned in Switzerland on April 18, 2023, marking the first such sale in Europe.
In this photograph taken on March 28, 2023, in Zurich, a woman takes part in the installation of "Trinity" a Tyrannosaurus rex skeleton dating back 67 million years which will be auctioned in Switzerland on April 18, 2023, marking the first such sale in Europe.
Towering 12.8 feet in the air, "Trinity" is made up of bone material from three T-Rex specimens, has been valued between $6.5-8.7 million, according to the auction catalogue.
Towering 12.8 feet in the air, "Trinity" is made up of bone material from three T-Rex specimens, has been valued between $6.5-8.7 million, according to the auction catalogue.

Six tons of pressure

A fearsome-looking predator, the Tyrannosaurus rex has been one of the most iconic dinosaur species to ever exist, thanks in large part to its terrorizing role in the 1993 classic "Jurassic Park" and its sequels.

Named the “king of the tyrant lizards,” the apex predator was built to rule, according to National Geographic. One bite from the fierce carnivore could deliver up to 6 tons of pressure, and with 60 serrated teeth about 8 inches long, the T. rex could throw prey into the air and swallow it whole, according to the outlet.

A handout photo made available on March 11, 2023 by the Koller Auction house shows a Tyrannosaurus rex skeleton dating back 67 million years which will be auctioned in Switzerland on April 18, 2023.
A handout photo made available on March 11, 2023 by the Koller Auction house shows a Tyrannosaurus rex skeleton dating back 67 million years which will be auctioned in Switzerland on April 18, 2023.
A handout photo made available on March 11, 2023 by the Koller Auction house shows a Tyrannosaurus rex skeleton dating back 67 million years which will be auctioned in Switzerland on April 18, 2023.
A handout photo made available on March 11, 2023 by the Koller Auction house shows a Tyrannosaurus rex skeleton dating back 67 million years which will be auctioned in Switzerland on April 18, 2023.

A recent study found that over their entire late-Cretaceous-Era reign, the total number of tyrannosaurs that ever lived was roughly 2.5 billion.

The species roamed North America for a few million years, meaning their population density was small at any one specific moment. In fact, at any one time, about 20,000 tyrannosaurs would have been alive on the planet.

'Original bone material'

More than half of the restored fossil is “original bone material,” and Koller auction house says the skull is particularly rare and was remarkably well preserved.

“When dinosaurs died in the Jurassic or Cretaceous periods, they often lost their heads during deposition. In fact, most dinosaurs are found without their skulls,” Nils Knoetschke, a scientific adviser, wrote in the online auction catalogue. “But here we have truly original Tyrannosaurus skull bones that all originate from the same specimen.”

A kissable Tyrannosaurus rex? Scientists now think lips hid dinosaur's razor-sharp teeth

In this photograph taken in Zurich on March 28, 2023, Yolanda Schicker-Siber (L) takes part in the installation of 'Trinity' a Tyrannosaurus rex skeleton dating back 67 million years which will be auctioned in Switzerland on April 18, 2023, marking the first such sale in Europe.
In this photograph taken in Zurich on March 28, 2023, Yolanda Schicker-Siber (L) takes part in the installation of 'Trinity' a Tyrannosaurus rex skeleton dating back 67 million years which will be auctioned in Switzerland on April 18, 2023, marking the first such sale in Europe.

Third of its kind ever auctioned

The sale, part of a wider auction of artifacts, marks only the third time such a T. rex skeleton has gone up for auction, according to Koller.

The same areas where Trinity's bones were excavated are also the source of two other dinosaurs skeletons that sold at auctions, Koller said: “Sue” sold for $8.4 million over a quarter-century ago, and “Stan” fetched nearly $32 million three years ago.

Visitors watch the skeleton of a Tyrannosaurus rex named Trinity, during a preview by auction house Koller at the Tonhalle Zurich concert hall, on Wednesday, March 29, 2023 in Zurich, Switzerland.
Visitors watch the skeleton of a Tyrannosaurus rex named Trinity, during a preview by auction house Koller at the Tonhalle Zurich concert hall, on Wednesday, March 29, 2023 in Zurich, Switzerland.

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Contributing: Doyle Rice, USA TODAY; The Associated Press

Natalie Neysa Alund covers breaking and trending news for USA TODAY. Reach her at nalund@usatoday.com and follow her on Twitter @nataliealund.

This article originally appeared on USA TODAY: T. rex skeleton, Trinity, auctioning at Koller in Zurich, Switzerland