T. rex had big growth spurts, but other theropods matured more steadily

Nov. 24 (UPI) — There’s more than one way to get really big — for theropod dinosaurs, anyways.

While Tyrannosaurus rex, one of the largest carnivores to walk the Earth, had massive teenage growth spurts to thank for its awesome size, new research suggests other theropod dinosaurs, some nearly as big as T. rex, grow more steadily.

From nose to tail, the biggest T. rex dinosaurs stretched some 42 feet. The Jurassic meat-eaters weighed more than 16,000 pounds. Fossils suggest some of its closest relatives grew nearly as large.

Scientists knew T. rex wasn’t alone in its ability to reach gargantuan proportions, but researchers were less sure about how other theropods managed to get so big.

“We wanted to look at a wide swath of different theropods, two-legged, carnivorous dinosaurs, in order to understand broader patterns of growth and evolution in the group,” study author Tom Cullen said

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One-of-a-kind fossil shows T. rex and Triceratops locked in battle to the death

When you imagine dinosaurs battling it out, the first match-up that comes to mind is Triceratops vs. T. rex. In our collective imagination they are fighting eternally. It’s the clash of the titans. But did these battles actually take place?



a herd of cattle walking across a river: Artist Anthony Hutchings' rendering of battling Tyrannosaurus rex and Triceratops horridus. Friends of the NC Museum of Natural Sciences


© Provided by CNET
Artist Anthony Hutchings’ rendering of battling Tyrannosaurus rex and Triceratops horridus. Friends of the NC Museum of Natural Sciences

Yes. Yes they did. We have the fossil to prove it, and for the first time ever, the public will be able to take a look.

The fossil — nicknamed “Dueling Dinosaurs” — was initially discovered in 2006, but until now has only been seen by a select few. It shows a T. rex and a Triceratops in mid-battle, literally fighting to the death. The pair are preserved in a fossil going on display for the first time at the North Carolina Museum of Natural Sciences, The

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Incredible fossil shows T. rex and Triceratops locked in battle to the death

When you imagine dinosaurs battling it out, the first match-up that comes to mind is Triceratops vs. T. rex. In our collective imagination they are fighting eternally. It’s the clash of the titans. But did these battles actually take place?



a herd of cattle walking across a river: Artist Anthony Hutchings' rendering of battling Tyrannosaurus rex and Triceratops horridus. Friends of the NC Museum of Natural Sciences


© Provided by CNET
Artist Anthony Hutchings’ rendering of battling Tyrannosaurus rex and Triceratops horridus. Friends of the NC Museum of Natural Sciences

Yes. Yes they did. We have the fossil to prove it and for the first time ever, the public will be able to take a look.

The fossil — nicknamed “Dueling Dinosaurs” — was initially discovered in 2006, but until now has only been seen by a select few. It shows a T. rex and a Triceratops in mid-battle, literally fighting to the death. The pair are preserved in a fossil going on display for the first time at the North Carolina Museum of Natural Sciences, The

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‘Dueling Dinosaurs’ fossil of T. rex, triceratops sold for $6 million

  • The “Dueling Dinosaurs” fossil is made up of intertwined T. rex and triceratops skeletons. 
  • The North Carolina Museum of Natural Sciences bought it for $6 million and will display the fossils starting in 2022.
  • Researchers there will examine the bones in detail and investigate whether the dinosaurs actually died in a duel. 
  • Visit Business Insider’s homepage for more stories.

A 67-million-year-old fossil pair known as “Dueling Dinosaurs” consists of a remarkably preserved T. rex alongside the bones of an equally intact Triceratops.

For years, the skeletons languished in labs and warehouses as ranchers and paleontologists fought a legal battle over their ownership. On Tuesday, that fight ended: The North Carolina Museum of Natural Sciences bought the dinosaurs for $6 million, according to the Charlotte Observer. The 30,000-pound fossils will soon arrive at the museum, which plans to begin work on a new Dueling Dinosaurs exhibit in May. 

The display, slated

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‘Dueling dinosaurs’ fossils show Triceratops, T. rex, may have died after a battle

It may have been a battle for the ages in ancient Montana.



a herd of cattle walking across a river


© Matt Zeher/North Carolina Museum of Natural Sciences


About 67 million years ago, two iconic dinosaurs, a Triceratops horridus and a Tyrannosaurus rex, died and were quickly buried together side by side in a single grave. And both of them bear battle scars. It’s the kind of showdown scientists have speculated about for years, but it has only ever appeared in “Jurassic Park” games — until now.

The impressively complete skeletons of these “dueling dinosaurs” will go on display and be studied at the North Carolina Museum of Natural Sciences in 2022, the museum announced Tuesday. The museum is located in downtown Raleigh.

The fossil of the Triceratops was first discovered 2006 as it eroded out of sedimentary rock from the Hell Creek Formation. This rock formation, which dates to 65.5 million years ago, was named for

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New Prehistoric Marine Reptile Resembled a Miniature Mix of Loch Ness Monster, Alligator and Toothy T. Rex | Smart News

About 240 million years ago, massive oceanic reptiles called nothosaurs dominated the seas. They looked like the mutant offspring of a trihybrid cross between the Loch Ness monster, an alligator and a T. rex. The beasts had long tails to slither underwater, jaws packed with razor-sharp teeth and flipper-like limbs to propel themselves through the water.

When a team of paleontologists from the Chinese Academy of Scientists and Canadian Museum of Nature discovered two small, similar fossils in quarries in southwest China, the scientists originally thought they belonged to juvenile nothosaurs. Further analysis revealed that they actually discovered a new species—the nothosaur’s smaller, stockier cousin. The team’s findings were published last week in the Journal of Vertebrate Paleontology, reports Science News’ Aayushi Pratap.

The team named the newly unearthed reptile Brevicaudosaurus jiyangshanensis, which roughly means “short-tailed lizard of Jiyangshan,” the quarry it was found in, according to

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