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  • dino illustration
  • Teleocrater rhadinus
  • new dino evolutionary tree
Your search has returned 17 articles:
  • Feature

    New fossils are redefining what makes a dinosaur

    “There’s a very faint dimple here,” Sterling Nesbitt says, holding up a palm-sized fossil to the light. The fossil, a pelvic bone, belonged to a creature called Teleocrater rhadinus. The slender, 2-meter-long reptile ran on all fours and lived 245 million years ago, about 10 million to 15 million years before scientists think dinosaurs first appeared.

    Nesbitt, a paleontologist at...

    02/21/2018 - 16:00 Paleontology, Evolution
  • The Science Life

    Early dinosaur relative sported odd mix of bird, crocodile-like traits

    While researching fossils in a museum in 2007, Sterling Nesbitt noticed one partial skeleton that was hard to place. Though the reptile — at the time, unofficially called Teleocrater rhadinus — was thought to be a dinosaur relative, it was an oddball. At about 2 meters long, it was larger than other close relatives, walked on four feet instead of two, and had an unusually long neck and tail....

    04/17/2017 - 14:22 Paleontology, Evolution, Animals
  • News

    Anatomy analysis suggests new dinosaur family tree

    The standard dinosaur family tree may soon be just a relic.

    After examining more than 400 anatomical traits, scientists have proposed a radical reshuffling of the major dinosaur groups. The rewrite, reported in the March 23 Nature, upsets century-old ideas about dinosaur evolution. It lends support to the accepted idea that the earliest dinosaurs were smallish, two-legged creatures. But...

    03/22/2017 - 14:06 Paleontology, Evolution, Animals
  • Feature

    What’s ahead for science in 2017?

    View the video

    As science journalists look back on the top stories of the year, scientists push on, asking the next questions and chasing fresh data. What big discoveries might they deliver in 2017? Science News writers reveal what they are watching for — and hoping for — in the year ahead. 

    Bruce BowerBehavioral Sciences

    “I look forward to seeing where the reproducibility...

    12/20/2016 - 09:00 Science & Society
  • News

    New dating of dino ancestor challenges Triassic timeline

    Dinosaurs arrived hot on the tails of their more ancient relatives, reptiles called dinosauromorphs, a new study shows.   

    New dating of a dinosauromorph fossil layer in a geologic formation in Argentina reveal that it’s between 5 million and 10 million years younger than previously thought. That means dinosaurs and their dinosauromorph predecessors were separated by a gap of less than 5...

    12/07/2015 - 15:00 Paleontology, Earth
  • News

    'Frankenstein' dinosaur was a mash-up of meat eater and plant eater

    Frankensaurus did exist. But don’t worry — the sharp-clawed creature was a vegetarian.

    Bones found in Chile reveal a bizarre new dinosaur that had a hodgepodge of anatomical features. Based on an ancestry that links it to Tyrannosaurus rex, Chilesaurus diegosuarezi should have been a meat eater, but preferred plants instead, researchers report April 27 in Nature. The discovery supports...

    04/27/2015 - 11:00 Paleontology
  • How Bizarre

    Stegosaurus landed a low blow in dino brawl

    VANCOUVER — In a story worthy of CSI: Jurassic Period, researchers have solved the mystery of what killed a predatory allosaurus dinosaur 147 million years ago.

    The allosaurus fossil contains a circular hole in its pelvis flanked by a well-preserved, fist-sized abscess where the infected wound spread. The only murder weapon around that time that would create the circular hole...

    10/22/2014 - 15:19 Paleontology
  • News

    Lost-and-found dinosaur thrived in water

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    Fossils brought together by unlikely chances now suggest that the sail-backed Spinosaurus was no mere wade-in-the-water fish-catcher. Instead, it is the only known dinosaur that routinely took to the water.  

    Plenty of big reptiles plied prehistoric waters, but they weren’t dinosaurs. Some dinos clearly ate fish, but that doesn’t mean they swam much.  


    09/11/2014 - 14:00 Paleontology, Animals, History of Science
  • News

    Contender for world’s oldest dinosaur identified

    What may be the most ancient dinosaur ever found — or at least a very close relative to the oldest currently known examples — could push the appearance of the awesome beasts back to 243 million years ago.

    Paleontologist Rex Parrington of the University of Cambridge in England discovered the fossil in the early 1930s, preserved in a rock formation known as the Manda Beds in...

    12/05/2012 - 16:18 Life & Evolution
  • News

    T. rex has another fine, feathered cousin

    From 125-million-year-old rocks, scientists have unearthed the remains of a new species of extensively feathered dinosaurs that weighed up to about 1,400 kilograms and stretched 9 meters from nose to tail.

    The fossils, from one adult and two younger dinos, were unearthed in northeast China, a region known for keeping soft tissues of ancient animals well-...

    04/04/2012 - 17:03 Paleontology, Life & Evolution