LOCAL NEWS

Utah Dinosaur Graveyard Indicates T-Rex Was Social Predator

Apr 19, 2021, 5:39 PM | Updated: Apr 20, 2021, 5:17 am
T-Rex fossil found at Grand Staircase National Monument. (Used by permission, Bureau of Land Manage...
T-Rex fossil found at Grand Staircase National Monument. (Used by permission, Bureau of Land Management)
(Used by permission, Bureau of Land Management)

KANAB, Utah – The Bureau of Land Management released a new study that indicates fearsome Tyrannosaurus rex traveled in packs and were not lone hunters as previously thought.

The study, released Monday, came from years of work at a fossil site inside Grand Staircase-Escalante National Monument in southern Utah.

BLM paleontologist Dr. Alan Titus discovered the Rainbows and Unicorns Quarry site in 2014.

“We realized right away this site could potentially be used to test the social tyrannosaur idea. Unfortunately, the site’s ancient history is complicated,” Titus said. “With bones appearing to have been exhumed and reburied by the action of a river, the original context with which they lay has been destroyed. However, all has not been lost.”

“The new Utah site adds to the growing body of evidence showing that tyrannosaurs were complex, large predators capable of social behaviors common in many of their living relatives, the birds,” said Dr. Joe Sertich, curator of dinosaurs at the Denver Museum of Nature and Science. “This discovery should be the tipping point for reconsidering how these top carnivores behaved and hunted across the northern hemisphere during the Cretaceous.”

Researchers believe the Tyrannosaurs died during a flood that washed their remains into a lake.

Aside from the 12 Tyrannosaurs, the crew found fossils from other dinosaurs, turtles, and a 12-foot-long Deinosuchus alligator.

Titus called it, “an especially important site that we found in 2014. A one of a kind, the first of its kind from the southern U.S.”

The fossils dated back 76.4 million years.

The news release said researchers will be at the site for years to come.

KSL 5 TV Live

Top Stories

Local News

...
Michael Houck

Police investigate death of a man after being taking into custody

Salt Lake City police are investigating the death of a robbery suspect after being placed in custody and sent to the hospital on Sunday.
21 hours ago
A group of teens vandalizing the koi pound at the plant nursery. (Courtesy: Cactus & Tropicals)...
Shelby Lofton

Teen vandals destroy koi pond, try to harm fish at Salt Lake City business

A group of teens broke into a local plant nursery in Salt Lake City, vandalizing property and terrorizing animals.
21 hours ago
(South Salt Lake Police Department)...
Cary Schwanitz

South Salt Lake water main break causes sink hole, road closures

South Salt Lake police closed off eastbound lanes from 3300 South to State Street Sunday morning because of a gushing water main.
21 hours ago
Zach guarded the Washington, D.C. temple construction site in the 70s. (KSL TV)...
Carole Mikita

Old story of temple guard dog recalled during rededication weekend for Washington D.C. Temple

The Washington, D.C. Temple of The Church of Jesus Christ of Latter-day Saints has been closed for the last four years because of a renovation and then the pandemic. The First Presidency traveled to our nation's capitol this weekend to rededicate the temple.
21 hours ago
The outside of the Washington, D.C. Temple on Saturday, August 13, 2022.
(2022 by Intellectual Rese...
Cary Schwanitz

President Nelson Rededicates the House of the Lord in Washington, D.C.

President M. Nelson of The Church of Jesus Christ of Latter-day Saints formally rededicated the Washington, D.C. Temple Sunday morning.
21 hours ago
The National Weather Service said most of Utah can expect more rain Sunday. (National Weather Servi...
Cary Schwanitz

One more day of monsoons expected, possible flooding at Utah’s Big Five, weather service says

SALT LAKE CITY — The Nation Weather Service said there is at least one more day of monsoons possible across most of Utah and southwest of Wyoming. After Sunday, the weather service expected much drier weather ahead. Monsoonal moisture will remain across Utah and southwest Wyoming for one more day before we see a drying […]
21 hours ago

Sponsored Articles

tips how to quit smoking...

7 Tips How to Quit Smoking | Quitting Smoking Might be One of the Hardest Things You Ever Do but Here’s Where You Can Start

Quitting smoking cigarettes can be incredibly difficult. Here are 7 tips how to quit smoking to help you on your quitting journey.
Photo: Storyblocks...
Blue Stakes of Utah 811

Blue Stakes of Utah 811: 5 Reasons To Call 811 Before You Dig When Working in Your Yard

Call before you dig. Even at home, you could end up with serious injuries or broken utilities just because you didn't call Blue Stakes of Utah 811.
Days of...
Days of '47 Rodeo

TRIVIA: How well do you know your rodeo? Take this quiz before you go to the Days of ’47!

The Utah Days of ’47 Rodeo presented by Zions Bank is a one-of-a-kind Gold Medal Rodeo being held July 20-23, 25 at 7:30 PM. The Days of ’47 Rodeo How well do you know your rodeo trivia? Take the quiz to test your know-all before heading out to the Days of ’47 Rodeo at the […]
cyber security through multi factor authentication setup...
Les Olson IT

How multi factor authentication setup helps companies stay safe

Multi factor authentication (MFA) setup is an important security measure that every company should implement for their workers. It’s also wise to install it for your personal and home accounts.
...
Lighting Design

Check out these stunning lamps with stained glass shades

Lamps with stained glass shades are statement pieces that are more than simply aesthetic. They also meet a functional requirement: to light up a room.
Address Bar of internet browser shows internet access...
AARP Utah

Utah voters 50+ support increased access to Internet

The AARP surveyed Utah voters aged 50 plus about internet access and if they support the expansion of broadband, especially in rural areas currently lacking it.
Utah Dinosaur Graveyard Indicates T-Rex Was Social Predator