Dinosaur

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Giant dinosaur slims down… a bit (BBC)
Titanosaur (Wikipedia)

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General

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Dinosaurs Science Tracer Bullet (Library of Congress)
Dinosaurs Portal (Wikipedia)

Dictionary

Dinosaur : any of a group (Dinosauria) of extinct often very large chiefly terrestrial carnivorous or herbivorous reptiles of the Mesozoic era — Webster

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Encyclopedia

Dinosaurare a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201 million years ago; their dominance continued through the Jurassic and Cretaceous periods. Reverse genetic engineering and the fossil record both demonstrate that birds are modern feathered dinosaurs, having evolved from earlier theropods during the late Jurassic Period. As such, birds were the only dinosaur lineage to survive the Cretaceous–Paleogene extinction event 66 million years ago. Dinosaurs can therefore be divided into avian dinosaurs, or birds; and non-avian dinosaurs, which are all dinosaurs other than birds. — Wikipedia

Encyclopædia Britannica

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Mary Anning, An Amazing Fossil Hunter (Smithsonian Magazine)

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Dinosaurs News -- ScienceDaily All about dinosaurs. Read about dinosaur discoveries including gigantic meat-eating dinosaurs, earliest dinosaurs and more. Dinosaur pictures and articles.

  • First birds: Archaeopteryx gets company
    on May 14, 2019 at 3:58 pm

    Researchers describe a hitherto unknown bird from the late Jurassic period. It is the second bird capable of flight, after the famous Archaeopteryx, to be identified from this era. […]

  • New three-foot-tall relative of Tyrannosaurus rex
    on May 6, 2019 at 3:14 pm

    'Suskityrannus gives us a glimpse into the evolution of tyrannosaurs just before they take over the planet,' said Sterling Nesbit. […]

  • Running may have made dinosaurs' wings flap...
    on May 2, 2019 at 6:35 pm

    Before they evolved the ability to fly, two-legged dinosaurs may have begun to flap their wings as a passive effect of running along the ground. […]

  • Duck-billed dinosaurs: Evolutionary bursts led to...
    on May 2, 2019 at 2:48 pm

    The duck-billed hadrosaurs walked the Earth over 90-million years ago and were one of the most successful groups of dinosaurs. But why were these 2-3 ton giants so successful? A new study shows that their special adaptations in teeth and jaws and in their head crests were crucial, and provides new insights into how these innovations evolved. […]

  • Flowering plants, new teeth and no dinosaurs: New...
    on May 1, 2019 at 3:46 pm

    A new study has identified three factors critical in the rise of mammal communities since they first emerged during the Age of Dinosaurs: the rise of flowering plants; the evolution of tribosphenic molars in mammals; and the extinction of non-avian dinosaurs, which reduced competition between mammals and other vertebrates in terrestrial ecosystems. […]


Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • Researchers make a moving tectonic map of the...
    on May 20, 2019 at 1:20 pm

    Scientists are among the millions of die-hard Game of Thrones fans digesting the show's finale today. […]

  • A 'high-heeled' dinosaur that walked on its...
    on May 17, 2019 at 11:39 am

    A 24-tonne dinosaur may have walked in a 'high-heeled' fashion, according to University of Queensland research. […]

  • Bedbugs evolved more than 100 million years...
    on May 16, 2019 at 3:00 pm

    Bedbugs—some of the most unwanted human bed-mates—have been parasitic companions with other species aside from humans for more than 100 million years, walking the earth at the same time as dinosaurs. […]

  • Newly discovered fossil footprints force...
    on May 16, 2019 at 1:17 pm

    An international team of paleontologists has united to study important fossil footprints recently discovered in a remote location within Grand Canyon National Park, Arizona. A large sandstone boulder contains several exceptionally well-preserved trackways of primitive tetrapods (four-footed animals) which inhabited an ancient desert environment. The 280-million-year-old fossil tracks date to almost the beginning of the Permian Period, prior to the appearance of the earliest dinosaurs. […]

  • Scientists unearth 'most bird-like' dinosaur ever...
    on May 14, 2019 at 2:00 pm

    Researchers in Germany have unearthed a new species of flying dinosaur that flapped its wings like a raven and could hold vital clues as to how modern-day birds evolved from their reptilian ancestors. […]