Colossal predatory dinosaur remains identified in Utah - 21 News Now, More Local News for Youngstown, Ohio -

Colossal predatory dinosaur remains identified in Utah

Updated: Nov 27, 2013 02:51 PM
© iStockphoto.com / Linda Bucklin © iStockphoto.com / Linda Bucklin
  • More NewsMore>>

  • Remembering Idora Park over the years

    Remembering Idora Park over the years

    Wednesday, April 23 2014 11:44 PM EDT2014-04-24 03:44:21 GMT
    This Saturday will mark the 30th anniversary of the devastating fire that led to the closing of the Idora Amusement Park. Glenn Stevens took a look back at Idora Park's history and the memories it made for generations. More >>
    This Saturday will mark the 30th anniversary of the devastating fire that led to the closing of the Idora Amusement Park. Glenn Stevens took a look back at Idora Park's history and the memories it made for generations. More >>
  • Trumbull County Sheriff Tom Altiere talks about hostage situation

    Trumbull County Sheriff Tom Altiere talks about hostage situation

    Wednesday, April 23 2014 11:29 PM EDT2014-04-24 03:29:48 GMT
    Following the five hour hostage situation at the Trumbull County jail that ended with the safe release of a corrections guard taken hostage by 3 inmates, Trumbull County Sheriff Tom Altiere spoke to 21 News.More >>
    Following the five hour hostage situation at the Trumbull County jail that ended with the safe release of a corrections guard taken hostage by 3 inmates, Trumbull County Sheriff Tom Altiere spoke to 21 News.More >>
  • GM ships kits to repair ignition in recalled cars

    GM ships kits to repair ignition in recalled cars

    Wednesday, April 23 2014 11:27 PM EDT2014-04-24 03:27:38 GMT
    General Motors says it has shipped thousands of kits consisting of ignition switches, ignition cylinders and key sets for older model small cars subject to a safety recall.According to a notice posted Wednesday on the General Motors corporate website, letters were mailed last week to about 1.4 million owners of 2003-2007 models telling them to contact a GM dealer to make an appointment for repairs, which GM says should take about 90 minutes. Wait times may be longer depending on the busyness ...More >>
    General Motors says it has shipped thousands of kits consisting of ignition switches, ignition cylinders and key sets for older model small cars subject to a safety recall.According to a notice posted Wednesday on the General Motors corporate website, letters were mailed last week to about 1.4 million owners of 2003-2007 models telling them to contact a GM dealer to make an appointment for repairs, which GM says should take about 90 minutes. Wait times may be longer depending on the busyness ...More >>

WEDNESDAY, Nov. 27, 2013 (HealthDay News) -- Scientists have identified a giant meat-eating dinosaur that roamed the Earth about 100 million years ago and was likely dominant over early tyrannosaurs.

The remains of the creature were found in the Cedar Mountain Formation in Utah. It is the first of its kind discovered in North America, the researchers said in a news release from the Field Museum of Natural History in Chicago.

"This dinosaur was a colossal predator second only to the great T. rex and perhaps Acrocanthosaurus in the North American fossil record," said study lead author Lindsay Zanno, director of paleontology at the North Carolina Museum of Natural Sciences and North Carolina State University.

The dinosaur -- named Siats meekerorum -- was more than 30 feet long and weighed more than four tons. Zanno initially discovered it in 2008 and its remains were retrieved during an excavation that lasted two summers.

The newly identified meat-eater was not a close relative of T. rex, but belongs to the family of predatory dinosaurs known as carcharodontosaurs. A famous member of that family is the Giganotosaurus, which was first discovered in Argentina.

Siats belongs to a branch of that family that was previously unknown in North America, according to the study, which was published in the Nov. 22 issue of the journal Nature Communications.

"We were thrilled to discover the first dinosaur of its kind in North America and add to mounting evidence that dinosaurs were widely dispersed across the globe 100 million years ago," study co-author Peter Makovicky, curator of dinosaurs at the Field Museum, said in the news release.

Siats appears in the middle of a 30-million-year gap in the fossil record of large predatory dinosaurs in North America. During that time, the top predator role changed from carcharodontosaurs in the Early Cretaceous period to tyrannosaurs in the Late Cretaceous period.

Teeth of tyrannosaurs from the Utah site indicate that the tyrannosaurs that were around at the same time as Siats were much smaller and did not compete for the top predator role.

"The huge size difference certainly suggests that tyrannosaurs were held in check by carcharodontosaurs, and only evolved into enormous apex predators after the carcharodontosaurs disappeared," Makovicky said.

"Finding Siats in the 30-million-year predator gap tells us carcharodontosaurs reigned supreme in North America for much longer than anyone had expected," Zanno said in the news release.

More information

The Smithsonian National Museum of Natural History has more about dinosaurs.

Copyright © 2013 HealthDay. All rights reserved.

*DISCLAIMER*: The information contained in or provided through this site section is intended for general consumer understanding and education only and is not intended to be and is not a substitute for professional advice. Use of this site section and any information contained on or provided through this site section is at your own risk and any information contained on or provided through this site section is provided on an "as is" basis without any representations or warranties.
  • More From wfmj.comMore>>

  • Restaurant plans new statue of Joe Paterno

    Restaurant plans new statue of Joe Paterno

    Wednesday, April 23 2014 12:57 PM EDT2014-04-23 16:57:56 GMT
     (AP) - Fans of the late Penn State University football coach Joe Paterno are planning to commission a new bronze statue of him, and place it across from the school. Organizers say the statue will feature Paterno sitting on a bench reading. It's expected to cost about $300,000 and would hopefully be done in 2015 by Philadelphia sculptor Zenos Frudakis. Penn State spokeswoman Lisa Powers says the school isn't involved in the plan. But a restaurant owner in downtown State Col...More >>
     (AP) - Fans of the late Penn State University football coach Joe Paterno are planning to commission a new bronze statue of him, and place it across from the school. Organizers say the statue will feature Paterno sitting on a bench reading. It's expected to cost about $300,000 and would hopefully be done in 2015 by Philadelphia sculptor Zenos Frudakis. Penn State spokeswoman Lisa Powers says the school isn't involved in the plan. But a restaurant owner in downtown State Col...More >>
  • Woman allegedly sold heroin from hospital bed

    Woman allegedly sold heroin from hospital bed

    Wednesday, April 23 2014 11:01 AM EDT2014-04-23 15:01:45 GMT
    A woman in western Pennsylvania is accused of selling heroin from a hospital intensive care unit and a hospital room.More >>
    A woman in western Pennsylvania is accused of selling heroin from a hospital intensive care unit and a hospital room.More >>
  • Jet stowaway undetected for hours before departure

    Jet stowaway undetected for hours before departure

    Tuesday, April 22 2014 11:44 PM EDT2014-04-23 03:44:25 GMT
    Surveillance cameras at San Jose International Airport successfully captured the teenager on the tarmac, climbing up the landing gear of a jet. But in the end, the cameras failed because no one noticed the security...More >>
    A 15-year-old stowaway who survived a flight over the Pacific in a jet's wheel well spent seven hours undetected in what is supposed to be a highly secure area of San Jose International Airport before the flight...More >>
  • Hot ClicksHot ClicksMore>>

  • Can an app save the planet?

    Can an app save the planet?

    This startup's Earth Day launch has a massive goal: Cut carbon emissions globally. It has its work cut out for it.
    More >>
    This startup's Earth Day launch has a massive goal: Cut carbon emissions globally. It has its work cut out for it.
    More >>
  • 'Captain America' holds onto top box office spot

    'Captain America' holds onto top box office spot

    Monday, April 21 2014 10:47 PM EDT2014-04-22 02:47:39 GMT
    LOS ANGELES (AP) - Captain America really is unbeatable - at least at the box office"Captain America: The Winter Soldier" has been the top draw at theaters for three consecutive weeks, vanquishing would-be foes including the new thriller starring Johnny Depp.According to Monday's final box office figures, the Marvel sequel added $25.6 million in ticket sales over the weekend. "The Winter Soldier" has made more than $200 million domestically since logging the best April opening in history."Hea...More >>
    LOS ANGELES (AP) - Captain America really is unbeatable - at least at the box office"Captain America: The Winter Soldier" has been the top draw at theaters for three consecutive weeks, vanquishing would-be foes including the new thriller starring Johnny Depp.According to Monday's final box office figures, the Marvel sequel added $25.6 million in ticket sales over the weekend. "The Winter Soldier" has made more than $200 million domestically since logging the best April opening in history."Hea...More >>
  • Netflix poised to raise prices after strong 1Q

    Netflix poised to raise prices after strong 1Q

    Monday, April 21 2014 10:37 PM EDT2014-04-22 02:37:26 GMT
    SAN FRANCISCO (AP) - Netflix is preparing a sequel unlikely to be a hit with its subscribers. The Internet video service is about to raise its prices for the first time in three years to help pay for more Internet video programming such as its popular political drama "House of Cards."The increase, to take place sometime before July, will hike prices by $1 or $2 per month for new customers. The company's nearly 36 million current subscribers will continue to pay $8 per month for at least the n...More >>
    SAN FRANCISCO (AP) - Netflix is preparing a sequel unlikely to be a hit with its subscribers. The Internet video service is about to raise its prices for the first time in three years to help pay for more Internet video programming such as its popular political drama "House of Cards."The increase, to take place sometime before July, will hike prices by $1 or $2 per month for new customers. The company's nearly 36 million current subscribers will continue to pay $8 per month for at least the n...More >>
Powered by WorldNow
All content © Copyright 2000 - 2014 Worldnow and WFMJ. All Rights Reserved. For more information on this site, please read our Privacy Policy and Terms